- Alloy frame for lightweight durability
- 100mm front suspension for smooth rides
- Shimano 7-speed gearing for versatile shifting
- Mechanical disc brakes for reliable stopping
- 27.5" wheels for agile handling
The Marin Bolinas Ridge 1 27.5" Hardtail Mountain Bike combines a lightweight alloy frame with a responsive 100mm front suspension, making it perfect for tackling trails and rough terrain. With its Shimano 7-speed gearing and reliable mechanical disc brakes, this bike offers a smooth and controlled ride, ensuring you can confidently navigate any adventure.
| Bottom bracket: | Sealed Cartridge Bearings, Square Taper |
|---|---|
| Brakes: | F: Tektro MDM280 Mechanical Disc, 160mm Rotor | R: Tektro MDM280 Mechanical Disc, 160mm Rotor |
| Brake levers: | Shimano w/ Integrated Shifters |
| Brake type: | Mechanical Disc Brake |
| Cassette: | Shimano, CSHG200, 7-Speed, 11-32T,7 Speed |
| Chain: | KMC Z8 |
| Chainset: | Triple |
| Colour: | Charcoal/Yellow |
| Crankset: | Alloy Crank, Steel Chainrings, 36/22T |
| Derailleur front: | Shimano FD-TX600 |
| Derailleur rear: | Shimano Tourney, 7-Speed |
| Fork: | SR Suntour XCE Disc, 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 Tourney |
| 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 Tourney 2x7-Speed |
| Speeds: | 3 x 7 |
| Spokes: | Black Stainless Steel |
| Stem: | Marin Alloy, 31.8mm, 45mm |
| Tubeless ready: | false |
| Tyres: | MTB, 27.5x2.25" |
| 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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