Note the later start time since we will be driving to get to the start. Accessed on our travel day between Solvang and Paso Robles, Pozo Loop offers up stunning scenery! There is good parking at the Community Park. Bring two full water bottles, as the water at the Ranger Station still says non potable. We will watch the temperatures. We generally eat at "The Porch" restaurant in town after the ride.

A cheerful adventurous attitude is encouraged. Strong navigation skills or riding with a buddy who knows the route can be very helpful. Please sign in online if you would like the leader to keep some track of you; there will not be a paper sign in sheet at the ride start. Two full water bottles and some nutrition makes good sense.

This ride has been canceled due to high probability of rain. We'll try again next week

This ride will start at El Cerrito Plaza BART. We will warm up riding the bike path 3 miles to the Alvarado Park entrance to Wildcat Canyon. This will be a no drop ride good for riders new to gravel riding, training for the GPC Gravel Century, or just want to ride at a more chill pace. It is recommended to have 32mm or bigger tires. Bring warm layers and bright lights to see by on the way home. The majority of the dirt sections will be fire roads with two sections of singletrack at the end. We will have regular regroups and there will be an option to skip the singletrack sections at the end of the ride.

https://www.strava.com/routes/3450182025717063070

https://ridewithgps.com/routes/49424972

This ride will shorten and clean up some previous Tors de Paso. This route will head south over some roller coaster hills on the Eastside, then cross to the Westside and do the entire Vineyard Drive and then return to Paso Robles on Adelaide Road. Excellent water and bathrooms can be found at Tablas Creek Winery (very bike friendly) , at mile 24. Helmets required, rain or high heat may cancel.

RWGPS: https://ridewithgps.com/routes/50160557

This ride starts in San Miguel. Please park across the street from the Mission. This is an out and back to the North American Plate. Just across the fault is the rustic town of Parkfield that serves up a great lunch. There is only one hill on this ride and you hit it both ways. Rain may cancel.

We will ride through the beautiful green hills, fields of bright yellow mustard and the vineyards coming to life. As usual we will have a lunch / snack stop in winters.

The weather forecast is for clear skies and cool temperatures. Should be a beautiful day.

There is sometimes a faster (more like M pace) group on this ride, but we all come back together at frequent regroups and lunch. Faster riders should feel free to push on after lunch. Just tell the leader first.

Please join us for this friendly Thursday evening TM ride. We’ll meet at North Berkeley BART (by the main BART entrance) at 5:20 pm, and we’ll be ready to roll at 5:30 pm sharp. We'll go up Spruce and out Grizzly Peak and Skyline, then down Shepherd Canyon and back to N. Berkeley BART. As the days get longer, we’ll add the (optional) out-and-back to Chabot Space and Science Center before heading down Shepherd Canyon. Bring lights and a jacket for the return trip. Route map: https://ridewithgps.com/routes/35867471.

Fun group of ~8-10 people every week.

Mixed Terrain loop from Canyon Club Brewery (CCB) via roads and trails

CCB > South Pinehurst > East Ridge (Redwood) > Skyline > The View (Sibley) > Volcano Loop > Wild Dirt (Wilder) > Lost Valley > Mira Shortcut > Moraga Way > CCB

Meet for an early start with a prompt departure so that if you hurry, you could check out by 11 AM. People really will leave at 8 AM, and it will be cold! We will ride a beautiful loop around the wine country of Paso Robles. I am leading the shorter version, but if you have time, you can extend the standard loop with an additional loop out to Cypress Mountain for a 40 mile ride. Peachy Canyon has one of the nicest, curviest downhills anywhere, and it seems like it never stops, until it makes you climb again and then have even more fun! If you plan on joining us, please let us know in advance, you should attend the happy hour / route planning meeting the night before, or check in with us, so that you are aware of any changes to the route, start time or start location. This is the day that many people will return home, so there often are changes. Bomb cyclones or atmospheric rivers may cancel. Helmets, cheerful attitude, etc.

We will ride to the Emeryville marina, then North on the Bay Trail for a clockwise loop to the Red Oak Victory Ship, Miller-Knox Park, bypass the Ferry Point Tunnel, & lunch @ Little Louie's. There will be an option to ride thru the tunnel.

A great time of year for this scenic ride through a remote area of Sonoma County
3 distance options/starting locations, described below.
Please be sure to preregister - if I'm not expecting anyone at a given meeting point, I will not wait there.
For 100-mile route, start/end at my home near Cotati: 5523 Henning Road (short distance from Hwy 116, plenty of parking), meet @7:45, roll @8:00am.
https://ridewithgps.com/routes/39000447

For 79-mile version, start/end in Freestone. We'll be regrouping in Freestone ca. 8:40, roll at 8:50.
https://ridewithgps.com/routes/38963426

For the 51-mile version, meet in Duncans Mills and be ready to roll ca 10:10am
https://ridewithgps.com/routes/39375366

For those riding one of the longer options we'll arrive in Duncans Mills around 9:45 where we'll have a stop at the Bakery. Depart Duncans Mills ca 10:10am.

We will plan on finishing before sunset but a mechanical or two could have us finishing later. So lights are highly recommended.
This time of year, mornings in Sonoma County can be quite cold, and afternoons quite warm, so check the weather the morning of the ride and dress with appropriately flexible options.
Please pre-register, and let me know where you'll be starting from so I'll know to look for you at the starting points for the 2 shorter options.

Join our cafe ride over the Richmond-San Rafael Bridge for croissant and hot cocoa at Marin Country Mart. New riders and beginners are welcome! This is a NO-DROP ride with plenty of stops.

Most of the route is on dedicated bike path. Watch out for train tracks in Richmond. We are also riding over the new Gilman bike and pedestrian bridge.

Updated route: https://ridewithgps.com/routes/38019355

Century Prep Series rides are designed to prepare new and/or veteran cyclists to ride the Grizzly Peak Century. We emphasize riding in a group and start with relatively easy routes. To check out the entire series and for more information see our Century Prep Series webpage. Non-members are welcome on all GPC rides, but please note: Because of insurance requirements, we limit participation in GPC rides by non-members to two (2) GPC rides. After you join us for a couple rides, please join the club. Your membership includes excess medical and accident insurance.

This sixth ride in the 2026 Century Prep Series leaves from El Cerrito Del Norte BART. Ride to Pinole, Crockett, then the "walls" McEwen Road, Pig Farm Road, and Hillcrest. Members and nonmembers can all pre-register using the link above to save us time at the start.

This ride is NO DROP. This means nobody will be left behind, no matter their pace or ability. Helmets are required. We look forward to riding with you! Rain cancels. Check this page the day of the ride if weather is dubious.

For all the rides in the Century Prep Series and more information, see our Century Prep Series webpage.

Join us for the Treasure Island lap, starting at the Bay Bridge base of the Alex Zuckermann bike path. This ride features shorter regroups, a faster T-pace, and sparkling city skylines. Expect one short, steep descent and a challenging half-mile climb off the island (7-10% grade). Ride ends with optional food and drinks at Bay Street or Wondrous Brewing Company. Bring lights and warm layers.

Ride with GPS Route

GPC Tuesday is a Brisk paced loop through the Berkeley / Oakland Hills starting at the Reservoir @ Spruce / Grizzly Blvd. Ride is characterized as fast pace lines with close quarters pack riding skills required. The ride has approximately 6 re-groups along the route. (Slower riders do have limited time to arrive at re-group points, however, as wait times are limited to 4-5 minutes.) Route as follows: Grizzly Peak to Skyline pausing at Sibley (riders can join at approximately 6:05 here at top of Tunnel Rd), Skyline to Redwood Rd, turning left on Pinehurst Rd back to Skyline, returning to ride start or peeling off to return home individually. No E-Bikes.

This is the classic Tuesday night workout & skills ride, M-pace. Please read the ride details and route description at http://www.abriz.net/gpc/tues-ride.html. Bring your high energy, your high attention to safety, and your best bike handling and pack riding skills. Repeats every Tuesday through the last week of September. Preregistration is highly encouraged. No flashing lights please. No e-bikes please. Rain or bad AQI cancels. E-mail Mark if any questions.

Join us for a friendly TM paced paved ride. We meet at the plaza near the water fountain by Spruce and Grizzly Peak. This is an out and back to Chabot Space and Science Center. We'll head out along Grizzly Peak Blvd or Wildcat and up South Park. Then, take Skyline to the Science Center driveway where we'll climb the road to Chabot Space and Science Center. Brief regroups are at the top of South Park, Grizzly Peak at Skyline, and Chabot Science Center. Please carry enough food and water for the entire ride. Please pre-register by 3:30PM day of ride. Rain, bad AQI, or no riders pre-registering might cancel the ride. E-bikes are welcome on this ride.

The pace is TM (approx. 16mph solo effort on flats, up to 3w/kg climbing)

https://ridewithgps.com/routes/45778398

Join Nikki and Sandy for the Petaluma-Tomales ride. No rain, but a chance of lambs and poppies, and the hills should still be green. From Walnut Park (So. Petaluma Blvd. and D St.) in Petaluma, ride a loop to Tomales. Lunch will be at the public park in Tomales. The deli has closed and the space has been taken over by the bakery, which is closed on Wednesday, so you will need to bring your lunch. The ride finishes with a short, steep and very scenic path through Helen Putnam Regional Park back to Petaluma. You can avoid this last hill by turning right on Western Ave. and following the second route sheet below. Weather will be sunny with a high of 64.

Please pre-register and print out or download the route sheets.

Return thru Helen Putnam Park:

https://ridewithgps.com/routes/40513637

Go back on Western Avenue:

https://ridewithgps.com/routes/40513872

This ride will start at El Cerrito Plaza BART. We will warm up riding the bike path 3 miles to the Alvarado Park entrance to Wildcat Canyon. This will be a no drop ride good for riders new to gravel riding, training for the GPC Gravel Century, or just want to ride at a more chill pace. It is recommended to have 32mm or bigger tires. Bring warm layers and bright lights to see by on the way home. The majority of the dirt sections will be fire roads with two sections of singletrack at the end. We will have regular regroups and there will be an option to skip the singletrack sections at the end of the ride.

https://www.strava.com/routes/3450182025717063070

https://ridewithgps.com/routes/49424972

Join the club's virtual monthly business meeting at 7:00 pm. Optional social time from 6:45 pm to 7:00 pm. Check your email for an announcement with the agenda and details of how to join the meeting.

Let's get out to Mines Road while it is still green and before it gets hot.

We'll ride out and back on Mines Road for a total of 68 miles, which you can shorten to 58 by stopping at the junction rather than continuing to the elbow. The Rainbow Junction Café is only open weekends so bring lunch or at least plenty of snacks. We can probably get water at the fire station or junction, but bring two bottles anyway. The start location has rest rooms and water.

Arrive by the meeting time if you want to start with the group. There will be a regroup at the milepost 10.5 on Mines Rd (more or less the top of the initial climb). Then another at the Junction.

Please join us for this friendly Thursday evening TM ride. We’ll meet at North Berkeley BART (by the main BART entrance) at 5:20 pm, and we’ll be ready to roll at 5:30 pm sharp. We'll go up Spruce and out Grizzly Peak and Skyline, then down Shepherd Canyon and back to N. Berkeley BART. As the days get longer, we’ll add the (optional) out-and-back to Chabot Space and Science Center before heading down Shepherd Canyon. Bring lights and a jacket for the return trip. Route map: https://ridewithgps.com/routes/35867471.

Fun group of ~8-10 people every week.

Mixed Terrain loop from Canyon Club Brewery (CCB) via roads and trails

CCB > South Pinehurst > East Ridge (Redwood) > Skyline > The View (Sibley) > Volcano Loop > Wild Dirt (Wilder) > Lost Valley > Mira Shortcut > Moraga Way > CCB

On the second Saturday of each month you simply roll out of bed, eat a hearty breakfast, head to the Orinda BART station for our All-Club ASSR ride and sign in for your choice of routes. Sign up here for an LT-paced ride! Meet at 9:00 for socializing and introductions. After that, we split into five separate pace groups. See more information about this ride on our website. This is a NO DROP ride with cafe stop at Philz in Lafayette.

On the second Saturday of each month you simply roll out of bed, eat a hearty breakfast, head to the Orinda BART station for our All-Club ASSR ride and sign in for your choice of routes. Sign up here for a T-paced ride! Meet at 9:00 for socializing and introductions. After that, we split into five separate pace groups. See more information about this ride on our website.

Now that Redwood Road is open, let's do this route through Dublin and Redwood Road. This is a NO DROP ride. Although we plan a lunch stop at Golf Course, the wait for the food from that restaurant could take too long. It is advised to grab a sandwich or bagel from the Danville stop and carry it with you to Golf Course.

On the second Saturday of each month you simply roll out of bed, eat a hearty breakfast, head to the Orinda BART station for our All-Club ASSR ride and sign in for your choice of routes. Sign up here for a TM-paced ride! Meet at 9:00 for socializing and introductions. After that, we split into five separate pace groups. See more information about this ride on our website.

On the second Saturday of each month you simply roll out of bed, eat a hearty breakfast, head to the Orinda BART station for our All-Club ASSR ride and sign in for your choice of routes. Sign up here for a TM-paced ride! Meet at 9:00 for socializing and introductions. After that, we split into five separate pace groups. See more information about this ride on our website.

On the second Saturday of each month you simply roll out of bed, eat a hearty breakfast, head to the Orinda BART station for our All-Club ASSR ride and sign in for your choice of routes. Sign up here for an M-paced ride! Meet at 9:00 for socializing and introductions. After that, we split into five separate pace groups. See more information about this ride on our website.

Let's get psyched for the GPC Gravel Century at Shell Ridge! Beginner to intermediate paced ride with a few moderately technical trails. Appropriate for gravel and MTB tires. Includes Walnut Creek Sports Basement post-ride stop for snacks (Pending coordination on 4/12 date.)

https://ridewithgps.com/routes/54098931

Century Prep Series rides are designed to prepare new and/or veteran cyclists to ride the Grizzly Peak Century. We emphasize riding in a group and start with relatively easy routes. To check out the entire series and for more information see our Century Prep Series webpage. Non-members are welcome on all GPC rides, but please note: Because of insurance requirements, we limit participation in GPC rides by non-members to two (2) GPC rides. After you join us for a couple rides, please join the club. Your membership includes excess medical and accident insurance.

This seventh ride in the 2026 Century Prep Series leaves from Pleasant Hill BART. Ride through Clayton and Morgan Territory. Return from Tassajara through Blackhawk and Round Hill, avoiding Danville Blvd and the Iron Horse Trail. Members and nonmembers can all pre-register using the link above to save us time at the start.

This ride is NO DROP. This means nobody will be left behind, no matter their pace or ability. Helmets are required. We look forward to riding with you! Rain cancels. Check this page the day of the ride if weather is dubious.

For all the rides in the Century Prep Series and more information, see our Century Prep Series webpage.

This variation returns from Tassajara through Blackhawk and Round Hill, avoiding Danville Blvd and the Iron Horse Trail.

Join us for the Treasure Island lap, starting at the Bay Bridge base of the Alex Zuckermann bike path. This ride features shorter regroups, a faster T-pace, and sparkling city skylines. Expect one short, steep descent and a challenging half-mile climb off the island (7-10% grade). Ride ends with optional food and drinks at Bay Street or Wondrous Brewing Company. Bring lights and warm layers.

Ride with GPS Route

GPC Tuesday is a Brisk paced loop through the Berkeley / Oakland Hills starting at the Reservoir @ Spruce / Grizzly Blvd. Ride is characterized as fast pace lines with close quarters pack riding skills required. The ride has approximately 6 re-groups along the route. (Slower riders do have limited time to arrive at re-group points, however, as wait times are limited to 4-5 minutes.) Route as follows: Grizzly Peak to Skyline pausing at Sibley (riders can join at approximately 6:05 here at top of Tunnel Rd), Skyline to Redwood Rd, turning left on Pinehurst Rd back to Skyline, returning to ride start or peeling off to return home individually. No E-Bikes.

This is the classic Tuesday night workout & skills ride, M-pace. Please read the ride details and route description at http://www.abriz.net/gpc/tues-ride.html. Bring your high energy, your high attention to safety, and your best bike handling and pack riding skills. Repeats every Tuesday through the last week of September. Preregistration is highly encouraged. No flashing lights please. No e-bikes please. Rain or bad AQI cancels. E-mail Mark if any questions.

Join us for a friendly TM paced paved ride. We meet at the plaza near the water fountain by Spruce and Grizzly Peak. This is an out and back to Chabot Space and Science Center. We'll head out along Grizzly Peak Blvd or Wildcat and up South Park. Then, take Skyline to the Science Center driveway where we'll climb the road to Chabot Space and Science Center. Brief regroups are at the top of South Park, Grizzly Peak at Skyline, and Chabot Science Center. Please carry enough food and water for the entire ride. Please pre-register by 3:30PM day of ride. Rain, bad AQI, or no riders pre-registering might cancel the ride. E-bikes are welcome on this ride.

The pace is TM (approx. 16mph solo effort on flats, up to 3w/kg climbing)

https://ridewithgps.com/routes/45778398

Nikki and Phil will lead a ride to Fort Ross via Cazadero https://www.grizz.org/routes/detail.php?id=158. Meet at 10:00 a.m.in Duncan's Mills https://www.grizz.org/rides/starts.php?id=23 on B St on the North side of the Highway opposite Moscow Rd. Allow at least 1 hr and 45 minutes driving time from Berkeley. We will ride through Cazadero and over Ft Ross, Seaview, and Timber Cove (steep descent, use your brakes) Roads to Ft Ross for lunch. The ride is about 41 miles and is quite hilly. Lunch will be at the Fort Ross store a mile or so before the park, where you can also buy sandwiches.

This ride will start at El Cerrito Plaza BART. We will warm up riding the bike path 3 miles to the Alvarado Park entrance to Wildcat Canyon. This will be a no drop ride good for riders new to gravel riding, training for the GPC Gravel Century, or just want to ride at a more chill pace. It is recommended to have 32mm or bigger tires. Bring warm layers and bright lights to see by on the way home. The majority of the dirt sections will be fire roads with two sections of singletrack at the end. We will have regular regroups and there will be an option to skip the singletrack sections at the end of the ride.

https://www.strava.com/routes/3450182025717063070

https://ridewithgps.com/routes/49424972

From Miller Creek we'll ride through Nicasio, the Cheese Factory, and over Red Hill to Petaluma for lunch at Ray's Deli & Tavern. Lunch is early, about mile 25. Return via Spring Hill and Chileno Valley.

Shorten the ride to 48 miles by meeting us in Nicasio, probably about 10:20.

We'll start when everyone who arrives by the meeting time is ready to go. If you arrive after the meeting time, you can probably chase us down in Nicasio. Please pre-register if you can.

Please join us for this friendly Thursday evening TM ride. We’ll meet at North Berkeley BART (by the main BART entrance) at 5:20 pm, and we’ll be ready to roll at 5:30 pm sharp. We'll go up Spruce and out Grizzly Peak and Skyline, then down Shepherd Canyon and back to N. Berkeley BART. As the days get longer, we’ll add the (optional) out-and-back to Chabot Space and Science Center before heading down Shepherd Canyon. Bring lights and a jacket for the return trip. Route map: https://ridewithgps.com/routes/35867471.

Fun group of ~8-10 people every week.

Mixed Terrain loop from Canyon Club Brewery (CCB) via roads and trails

CCB > South Pinehurst > East Ridge (Redwood) > Skyline > The View (Sibley) > Volcano Loop > Wild Dirt (Wilder) > Lost Valley > Mira Shortcut > Moraga Way > CCB

Ride to China Camp through Richmond San Rafael Bridge. We will do a clockwise loop.

Route: https://ridewithgps.com/routes/54687772

Let's get stoked for the GPC Gravel Century at Shell Ridge! Beginner to intermediate paced ride with a few moderately technical trails. Appropriate for gravel and MTB tires.

https://ridewithgps.com/routes/54098931

Century Prep Series rides are designed to prepare new and/or veteran cyclists to ride the Grizzly Peak Century. We emphasize riding in a group and start with relatively easy routes. To check out the entire series and for more information see our Century Prep Series webpage. Non-members are welcome on all GPC rides, but please note: Because of insurance requirements, we limit participation in GPC rides by non-members to two (2) GPC rides. After you join us for a couple rides, please join the club. Your membership includes excess medical and accident insurance.

This eighth ride in the 2026 Century Prep Series leaves from Orinda BART. A loop from Orinda Bart following much of the south loop from the 2025 century plus a portion of the route up Pinehurst to Skyline. Members and nonmembers can all pre-register using the link above to save us time at the start.

This ride is NO DROP. This means nobody will be left behind, no matter their pace or ability. Helmets are required. We look forward to riding with you! Rain cancels. Check this page the day of the ride if weather is dubious.

For all the rides in the Century Prep Series and more information, see our Century Prep Series webpage.

Riding the GPC Gravel Century? Join us for a pre-ride of the North Loop of the 100k route.

This ride will be a no drop ride at a T pace. Expect steep descents and some technical single track. Bring water and nutrition. There are restrooms and water along the route. Please download the route to your device.

Route:

https://www.strava.com/routes/3463211263531313584

https://ridewithgps.com/routes/54123840

Join us for the Treasure Island lap, starting at the Bay Bridge base of the Alex Zuckermann bike path. This ride features shorter regroups, a faster T-pace, and sparkling city skylines. Expect one short, steep descent and a challenging half-mile climb off the island (7-10% grade). Ride ends with optional food and drinks at Bay Street or Wondrous Brewing Company. Bring lights and warm layers.

Ride with GPS Route

GPC Tuesday is a Brisk paced loop through the Berkeley / Oakland Hills starting at the Reservoir @ Spruce / Grizzly Blvd. Ride is characterized as fast pace lines with close quarters pack riding skills required. The ride has approximately 6 re-groups along the route. (Slower riders do have limited time to arrive at re-group points, however, as wait times are limited to 4-5 minutes.) Route as follows: Grizzly Peak to Skyline pausing at Sibley (riders can join at approximately 6:05 here at top of Tunnel Rd), Skyline to Redwood Rd, turning left on Pinehurst Rd back to Skyline, returning to ride start or peeling off to return home individually. No E-Bikes.

This is the classic Tuesday night workout & skills ride, M-pace. Please read the ride details and route description at http://www.abriz.net/gpc/tues-ride.html. Bring your high energy, your high attention to safety, and your best bike handling and pack riding skills. Repeats every Tuesday through the last week of September. Preregistration is highly encouraged. No flashing lights please. No e-bikes please. Rain or bad AQI cancels. E-mail Mark if any questions.

Come ride on familiar roads with some possible surprises. The first is the starting point, Rancho Laguna Park in Moraga, a pretty park you may not know. Another is Lake Cascade in Orinda, which we'll circle. Often overlooked by cyclists whizzing by on nearby Camino San Pablo, the Lake is now completely full, teeming with ducks, geese, and other waterfowl.

You'll have two options:

a 43-mile route https://ridewithgps.com/routes/53473248 with a lunch stop at Golden Hills Park, off Reliez Valley Road;

a 23-mile route https://ridewithgps.com/routes/53473660 with lunch at the end of the ride at Rancho Laguna Park.

Bring your lunch or pick it up along the way in Moraga or Orinda. Forecast is for rain overnight with clearing by our roll time. If clearing appears delayed, we may start a little later. Watch for updates. Please pre-register.

This ride will start at El Cerrito Plaza BART. We will warm up riding the bike path 3 miles to the Alvarado Park entrance to Wildcat Canyon. This will be a no drop ride good for riders new to gravel riding, training for the GPC Gravel Century, or just want to ride at a more chill pace. It is recommended to have 32mm or bigger tires. Bring warm layers and bright lights to see by on the way home. The majority of the dirt sections will be fire roads with two sections of singletrack at the end. We will have regular regroups and there will be an option to skip the singletrack sections at the end of the ride.

https://www.strava.com/routes/3450182025717063070

https://ridewithgps.com/routes/49424972

Meet in the penultimate northern parking lot of Heather Farm in Walnut Creek (by the baseball fields) for this ride to Clayton, Morgan Territory, and Diablo Junction. Draeger's Market is gone, so we'll explore the shopping center on the other side of Tassajara for lunch.

Note that Heather Farm is about a mile from Pleasant Hill BART, which is probably the preferred way to get there. If you want to make the ride easier you can skip the Diablo climb after lunch and work your way back on the Iron Horse Trail or using this nicer route. Navigation for those options is up to you.

There is sometimes a faster (more like M pace) group on this ride, but we all come back together at frequent regroups and lunch. We'll start when everyone who arrives by the meeting time is ready. If you arrive after the meeting time you may have to chase. You can probably catch us at the park in Clayton, where we will have a brief stop.

Please join us for this friendly Thursday evening TM ride. We’ll meet at North Berkeley BART (by the main BART entrance) at 5:20 pm, and we’ll be ready to roll at 5:30 pm sharp. We'll go up Spruce and out Grizzly Peak and Skyline, then down Shepherd Canyon and back to N. Berkeley BART. As the days get longer, we’ll add the (optional) out-and-back to Chabot Space and Science Center before heading down Shepherd Canyon. Bring lights and a jacket for the return trip. Route map: https://ridewithgps.com/routes/35867471.

Fun group of ~8-10 people every week.

Mixed Terrain loop from Canyon Club Brewery (CCB) via roads and trails

CCB > South Pinehurst > East Ridge (Redwood) > Skyline > The View (Sibley) > Volcano Loop > Wild Dirt (Wilder) > Lost Valley > Mira Shortcut > Moraga Way > CCB

The classic GPC Del Puerto loop from Pleasanton. A fabulous variety of terrain for riding, sightseeing, climbing (including one 1.5 mile steep pitch, hence the "!" in the listing), descending, and pacelining (optional but recommended).

In 120 miles we'll traverse the Livermore Valley; ride out to the Central Valley; skirt around Tracy and Patterson; climb Del Puerto Canyon to San Antonio Junction; climb away from the Junction, zoom down Mines Road, and finally re-traverse the Livermore Valley back to Pleasanton. The route: ridewithgps.com/routes/26625111. It has no shortcuts or bailouts. Note for those who have ridden that "other" :-) bike club's route recently: We follow a classic and different route through both valleys, including vineyard and foothill views through the Livermore Valley and the historic Hwy 33 through Vernalis and Westley in the Central Valley.

For the Pleasanton start (120 mile version), be ready to ride at 7:30am - please arrive long enough in advance to get ready. Prompt 7:40am departure. Location: Pleasanton at Railroad Ave just north of W. Neal (between First and Main Sts). Nice public restrooms are nearby, in the park one block south (but if you might need the restroom, please arrive and be parked by 07:15 latest).

For the 100 mile version, meet us in Livermore at Ernie Rodrigues Fields near the intersection of Concannon Blvd and S Livermore Ave. Parking and restrooms are available. Please be there, ready to ride, at 8:20am, although our exact arrival time is not possible to predict.

Three food stops: A convenience store near Tracy, about 1/4-way (no restrooms, alas); lunch near Patterson, about 1/2-way; refreshments (pricey, however) at The Junction in San Antonio Valley, about 3/4-way.

Pace. This is listed as "TM" and is for reasonably strong TM riders, not aspirational. Much of the route is relatively flat so pacelining skills will help you stay with the group. Happy to give pointers about that on the ride.

Bring lights in case of a later return than expected, especially if you're doing the 120 mile route. Be prepared for chilly morning weather.

Preregistration is mandatory for Livermore starters so that we know to expect you - please email me or else indicate "Livermore" when you register. Prereg is greatly appreciated in any case.

If no riders have signed up by 7 a.m. the morning of the ITT/GPC Pace Ride, it will be cancelled. If there is at least one rider signed up, it will go forward and riders can register online up until 9:50 a.m.

Individual Time Trial
Come test your fitness level and get in a great workout by riding the Bears Loop as a time trial. In the ITT, each person rides at his/her own pace (no drafting) to see how fast the Bears Loop can be completed. It’s a great format for pushing yourself to see how fast you can ride the loop.

Pace Group Ride
Ride the Bears Loop at your normal pace to use it to determine your GPC pace (https://www.grizz.org/rides/ratings.php). Or use this ride to train at a particular pace for an upcoming event.

The first rider is off at 10:01 and a rider a minute after that. For the GPC Pace ride, a pace group can start together, or each rider can rider on their own as the ITT riders do. (Regardless of the format, each rider is timed individually.)

Rider finishing times are usually shared in the ride report email to the club. While it is nice to see what times folks ride, reporting of rider times is optional. Also, the ITT is open to both members and non-members; no need to join as in the past.

Century Prep Series rides are designed to prepare new and/or veteran cyclists to ride the Grizzly Peak Century. We emphasize riding in a group and start with relatively easy routes. To check out the entire series and for more information see our Century Prep Series webpage. Non-members are welcome on all GPC rides, but please note: Because of insurance requirements, we limit participation in GPC rides by non-members to two (2) GPC rides. After you join us for a couple rides, please join the club. Your membership includes excess medical and accident insurance.

This ninth ride in the 2026 Century Prep Series leaves from Orinda BART. This is the north loop of the century, from Orinda BART, using the Bay Trail through Pinole and Rodeo. Members and nonmembers can all pre-register using the link above to save us time at the start.

This ride is NO DROP. This means nobody will be left behind, no matter their pace or ability. Helmets are required. We look forward to riding with you! Rain cancels. Check this page the day of the ride if weather is dubious.

For all the rides in the Century Prep Series and more information, see our Century Prep Series webpage.

Join us for the Treasure Island lap, starting at the Bay Bridge base of the Alex Zuckermann bike path. This ride features shorter regroups, a faster T-pace, and sparkling city skylines. Expect one short, steep descent and a challenging half-mile climb off the island (7-10% grade). Ride ends with optional food and drinks at Bay Street or Wondrous Brewing Company. Bring lights and warm layers.

Ride with GPS Route

GPC Tuesday is a Brisk paced loop through the Berkeley / Oakland Hills starting at the Reservoir @ Spruce / Grizzly Blvd. Ride is characterized as fast pace lines with close quarters pack riding skills required. The ride has approximately 6 re-groups along the route. (Slower riders do have limited time to arrive at re-group points, however, as wait times are limited to 4-5 minutes.) Route as follows: Grizzly Peak to Skyline pausing at Sibley (riders can join at approximately 6:05 here at top of Tunnel Rd), Skyline to Redwood Rd, turning left on Pinehurst Rd back to Skyline, returning to ride start or peeling off to return home individually. No E-Bikes.

This is the classic Tuesday night workout & skills ride, M-pace. Please read the ride details and route description at http://www.abriz.net/gpc/tues-ride.html. Bring your high energy, your high attention to safety, and your best bike handling and pack riding skills. Repeats every Tuesday through the last week of September. Preregistration is highly encouraged. No flashing lights please. No e-bikes please. Rain or bad AQI cancels. E-mail Mark if any questions.

Join us for a friendly TM paced paved ride. We meet at the plaza near the water fountain by Spruce and Grizzly Peak. This is an out and back to Chabot Space and Science Center. We'll head out along Grizzly Peak Blvd or Wildcat and up South Park. Then, take Skyline to the Science Center driveway where we'll climb the road to Chabot Space and Science Center. Brief regroups are at the top of South Park, Grizzly Peak at Skyline, and Chabot Science Center. Please carry enough food and water for the entire ride. Please pre-register by 3:30PM day of ride. Rain, bad AQI, or no riders pre-registering might cancel the ride. E-bikes are welcome on this ride.

The pace is TM (approx. 16mph solo effort on flats, up to 3w/kg climbing)

https://ridewithgps.com/routes/45778398

It is time for springtime in Napa with one of our favorite rides - with the counterclockwise ride to Mt. Veeder and enjoy spring flowers and green hills after the rain in the vineyards with the return route that includes a beautiful bike trail along a eucalyptus grove! Plan for sunny day but not too hot. The climb up Mt Veeder will mostly be in the shade and then the remaining part of the ride is either downhill or mostly flat. Bring plenty of water and snacks; late lunch stop at Browns Valley Market and the yogurt shop. Then we will take our route back to the cars at Cuttings Wharf. Bring layers.

This ride will start at El Cerrito Plaza BART. We will warm up riding the bike path 3 miles to the Alvarado Park entrance to Wildcat Canyon. This will be a no drop ride good for riders new to gravel riding, training for the GPC Gravel Century, or just want to ride at a more chill pace. It is recommended to have 32mm or bigger tires. Bring warm layers and bright lights to see by on the way home. The majority of the dirt sections will be fire roads with two sections of singletrack at the end. We will have regular regroups and there will be an option to skip the singletrack sections at the end of the ride.

https://ridewithgps.com/routes/49424972

From our Marinwood start, we will ride to Nicasio, then to Pt Reyes Station for a pastry, then up the coast to the Marshall Wall, which is a two-humper in this direction. Lunch at the Cheese Factory before completing the loop.

Shorten the ride to about 42 miles by starting in Nicasio. We should pass through there about 10:20 or so.

Please pre-register if you can. There is sometimes a faster (more like M pace) group on this ride, but we all come back together at frequent regroups and lunch. We'll start when everyone who arrives by the meeting time is ready. If you arrive after the meeting time you may have to chase. You can probably catch us in Nicasio, where we will have a short regroup.

Please join us for this friendly Thursday evening TM ride. We’ll meet at North Berkeley BART (by the main BART entrance) at 5:20 pm, and we’ll be ready to roll at 5:30 pm sharp. We'll go up Spruce and out Grizzly Peak and Skyline, then down Shepherd Canyon and back to N. Berkeley BART. As the days get longer, we’ll add the (optional) out-and-back to Chabot Space and Science Center before heading down Shepherd Canyon. Bring lights and a jacket for the return trip. Route map: https://ridewithgps.com/routes/35867471.

Fun group of ~8-10 people every week.

Mixed Terrain loop from Canyon Club Brewery (CCB) via roads and trails

CCB > South Pinehurst > East Ridge (Redwood) > Skyline > The View (Sibley) > Volcano Loop > Wild Dirt (Wilder) > Lost Valley > Mira Shortcut > Moraga Way > CCB