- Lightweight 6061 aluminum frame
- SR Suntour XCM DS fork, 100mm travel
- Shimano 8-speed drivetrain
- Tektro hydraulic disc brakes
- 27.5" wheels for versatile terrain
The Marin Bolinas Ridge 2 27.5" Hardtail Mountain Bike is designed for riders seeking a reliable and versatile bike for various terrains. Its lightweight 6061 aluminum frame offers durability and ease of handling, while the SR Suntour XCM DS fork with 100mm travel ensures a smooth ride over rough trails. The Shimano 8-speed drivetrain provides a wide range of gears for tackling different inclines, and the Tektro hydraulic disc brakes deliver consistent stopping power in all conditions. With 27.5" wheels, this bike strikes a balance between agility and stability, making it an excellent choice for both beginners and experienced riders.
| Bottom bracket: | Sealed Cartridge Bearings, Square Taper |
|---|---|
| Brakes: | Tektro M280 Hydraulic Disc, 160mm Rotor |
| Brake levers: | Tektro Hydraulic |
| Brake type: | Hydraulic Disc Brake |
| Cassette: | Shimano 8-Speed, 11-45T,8 Speed |
| Chain: | KMC Z8 |
| Chainset: | Single |
| Colour: | Black/Silver |
| Crankset: | Alloy Crank, Steel Narrow/Wide Chainring, 32 |
| Derailleur rear: | Shimano Essa, 8-Speed |
| Fork: | SR Suntour XCM DS, 100mm Travel, Preload Adjustment, 46mm Offset |
| Fork brand: | Suntour |
| Frame: | Series 1 6061 Aluminum, 27.5”/29" Wheels, Low Standover, 68mm BB shell, 135mm Forged Dropouts, Chainstay Mounted Disc Brakes |
| Frame material: | Alloy |
| Frame style: | Crossbar |
| Front travel: | 100mm |
| Grip: | Marin MTB, Closed End |
| Grips: | Marin MTB, Closed End |
| Groupset: | Shimano ESSA |
| Groupset brand: | Shimano |
| Handlebar: | Marin 31.8 Riser, 12mm Rise, 780mm Width, XS/S models have 740mm Width. |
| Handlebars: | Marin 31.8 Riser, 12mm Rise, 780mm Width, XS/S models have 740mm Width. |
| Handlebar stem: | Marin Alloy, 31.8mm, 45mm |
| Headset: | FSA No.10-P |
| Hubs: | F: Forged Alloy, Disc, 32H | R: Forged Alloy, Disc, 32H |
| Mips rated: | false |
| Pedals: | Nylon Platform |
| Puncture resistant: | false |
| Rim: | Marin, Double Wall Alloy |
| Rims: | Marin, Double Wall Alloy |
| Saddle: | Marin MTB |
| Season: | 2026 |
| Seatpost: | Marin Alloy, 27.2mm |
| Seat post: | Marin Alloy, 27.2mm |
| Shifters: | Shimano Altus 1x8-Speed |
| Speeds: | 1 x 8 |
| Spokes: | Black Stainless Steel |
| Stem: | Marin Alloy, 31.8mm, 45mm |
| Tubeless ready: | false |
| Tyres: | MTB, 27.5/29x2.25" |
| Wheel size: | 27.5" (650b) |
Marin Bolinas Ridge Bike Sizing Chart

Marin Bikes are Made For Fun. Since the first mountain bikes bearing the Marin name debuted in 1986, the brand has been dedicated to enriching the lives of riders by making fun, high caliber bicycles, which provide years of riding enjoyment. They operate their business based on hard work, fueled by passion, and fulfilled by the satisfaction of bringing the joy of cycling to riders across the world.
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