This item is considered oversized. Due to increased shipping rates and surcharges from carriers, including UPS and FedEx, this item will incur an additional Peak Season Surcharge Oversized Fee. Such surcharges will remain in place UNTIL FURTHER NOTICE, or until such time UPS and FedEx suspend these fees. You may find out more about Peak Surcharges on ups.com and fedex.com.
wishing to explore singletrack and dirt trails with a mountain
bike built for real trails, with trail capable suspension forks and
all-conditions disc brakes. The Bolinas Ridge 26 is the perfect
adolescent mountain bike to explore with.
Frame: | Series 1 6061 Aluminum, 27.5”/29" Wheels, Low Stanover, 68mm BB shell, 135mm Forged Dropouts, Chainstay Mounted Disc Brakes |
---|---|
Fork: | SR Suntour XCM DS 27.5”, 100mm Travel, Preload Adjustment |
Rear Shock: | N/A |
Crankset: | Shimano FC-TY301, 42/34/24T |
Shifters: | Shimano ST-EF51 3x8-Speed |
Headset: | FSA No.10-P |
Wheelset: | Marin, Double Wall Alloy |
Seatpost: | Marin Alloy |
Derailleur: | Shimano Altus, 8-Speed |
Stem: | Marin Alloy, 31.8 Clamp, 45mm |
---|---|
Handlebars: | Marin 31.8 Riser, 12mm Rise, 780mm Width |
Saddle: | Marin MTB |
Cassette: | SunRace 8-Speed, 11-32T |
Brakes: | Power CX7 Mechanical Disc, Shimano Pad Compatible |
Tires: | MTB, 27.5/29x2.25" |
Bottom Bracket: | Sealed Cartridge Bearings, Square Taper |
Pedals: | Nylon Platform |

All bikes purchased through City Grounds MUST be assembled by a certified bike shop mechanic. If the bike is NOT built by a certified bike shop mechanic, any warranty will be VOID. We will request for an assembly receipt as proof of professional installation.
For all warranty claims, please contact our Warranty Team at warranty@citygrounds.com. So that we can help you in a timely manner, make sure to include the following:
- 1. Order Number (we will confirm date of purchase and determine if the item is still under the manufacturer’s warranty time limit)
- 2. Brief description of the claim
- 3. Photographs
- 4. If the item is a bike or frame, include the serial number
We evaluate all warranties case-by-case to determine the best course of action and get you serviced to the best of our ability!
Warranty does not apply to the following:
- • Any part of a product that has been installed, altered, repaired, or misused
- • Damage from unintended style of riding, abuse, neglect, accident, and racing
- • Normal wear and tear of any product (including but not limited to - saddles, grips, tires, tubes, cables, brake pads, chains)
- • Failure to provide regular maintenance of any product
Labor and shipping are the responsibility of the customer. We do not cover parts purchased and labor performed by another bike shop.
Note: Warranty is for original owner only.
wishing to explore singletrack and dirt trails with a mountain
bike built for real trails, with trail capable suspension forks and
all-conditions disc brakes. The Bolinas Ridge 26 is the perfect
adolescent mountain bike to explore with.
Frame: | Series 1 6061 Aluminum, 27.5”/29" Wheels, Low Stanover, 68mm BB shell, 135mm Forged Dropouts, Chainstay Mounted Disc Brakes |
---|---|
Fork: | SR Suntour XCM DS 27.5”, 100mm Travel, Preload Adjustment |
Rear Shock: | N/A |
Crankset: | Shimano FC-TY301, 42/34/24T |
Shifters: | Shimano ST-EF51 3x8-Speed |
Headset: | FSA No.10-P |
Wheelset: | Marin, Double Wall Alloy |
Seatpost: | Marin Alloy |
Derailleur: | Shimano Altus, 8-Speed |
Stem: | Marin Alloy, 31.8 Clamp, 45mm |
---|---|
Handlebars: | Marin 31.8 Riser, 12mm Rise, 780mm Width |
Saddle: | Marin MTB |
Cassette: | SunRace 8-Speed, 11-32T |
Brakes: | Power CX7 Mechanical Disc, Shimano Pad Compatible |
Tires: | MTB, 27.5/29x2.25" |
Bottom Bracket: | Sealed Cartridge Bearings, Square Taper |
Pedals: | Nylon Platform |
All bikes purchased through City Grounds MUST be assembled by a certified bike shop mechanic. If the bike is NOT built by a certified bike shop mechanic, any warranty will be VOID. We will request for an assembly receipt as proof of professional installation.
For all warranty claims, please contact our Warranty Team at warranty@citygrounds.com. So that we can help you in a timely manner, make sure to include the following:
- 1. Order Number (we will confirm date of purchase and determine if the item is still under the manufacturer’s warranty time limit)
- 2. Brief description of the claim
- 3. Photographs
- 4. If the item is a bike or frame, include the serial number
We evaluate all warranties case-by-case to determine the best course of action and get you serviced to the best of our ability!
Warranty does not apply to the following:
- • Any part of a product that has been installed, altered, repaired, or misused
- • Damage from unintended style of riding, abuse, neglect, accident, and racing
- • Normal wear and tear of any product (including but not limited to - saddles, grips, tires, tubes, cables, brake pads, chains)
- • Failure to provide regular maintenance of any product
Labor and shipping are the responsibility of the customer. We do not cover parts purchased and labor performed by another bike shop.
Note: Warranty is for original owner only.

FITNESS DIRT ROAD RIDING
The Bolinas Ridge series has a disc specific Series 1 6061 aluminum frame with a replaceable derailleur hanger and an integrated headset. The Bolinas Ridge has a growing wheel size for the best fit and performance with the choice of 27.5” or 29” platforms on the size M, 27.5” wheels on size S, and 29” wheels on sizes L, XL, and XXL. All Bolinas Ridge models feature disc brakes for minimal maintenance and all-conditions stopping power. The Bolinas Ridge line features durable double wall rims, serviceable cassette freehubs, proven Shimano drivetrains, and readily available parts that are built to last.
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Comments
wishing to explore singletrack and dirt trails with a mountain
bike built for real trails, with trail capable suspension forks and
all-conditions disc brakes. The Bolinas Ridge 26 is the perfect
adolescent mountain bike to explore with.