Marin Bolinas Ridge 2, MD (2021) Satin Black/Cyan/Roarange

SBC ID | MFG SKU - 210000067462 | 730348001

The Bolinas Ridge is perfectly suited for recreational riders 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 family of mountain bikes are designed for the recreational mountain biker looking to explore the local singletrack or dirt paths. Utilizing Marin's lightweight Series 1 aluminum alloy frames, 100mm travel suspension forks, and reliable Shimano drivetrains, these bikes are capable of tackling real trails and pushing your own boundaries. 

Why you'll love it:

Key upgrades over Bolinas Ridge 1:

  • Shimano Altus 3x8 drivetrain
  • Tektro M275 hydraulic disc brakes
  • SR Suntour XCM DS fork

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 line features durable double-wall rims, serviceable cassette freehubs, proven Shimano drivetrains, and readily available parts that are built to last.

All Bolinas Ridge models feature disc brakes for minimal maintenance and all-conditions stopping power.

Sizing & fit

This Medium frame generally fits rider 5"5"-5'9", but there are some other factors, like arm and leg length, that determine a great fit.

The best way to find your perfect fit is to consult the experts here at Sunshine Bicycle Center.


  • FRAME: Series 1 6061 Aluminum, 27.5”/29" Wheels, Low Standover, 68mm BB shell, 135mm Forged Dropouts, Chainstay Mounted Disc Brakes
  • FRONT SUSPENSION: SR Suntour XCM DS, 100mm Travel, Preload Adjustment, 46mm Offset
  • RIMS: Marin, Double Wall Alloy
  • HUB, REAR: Forged Alloy, Disc, 32H
  • HUB, FRONT: Forged Alloy, Disc, 32H
  • SPOKE, NIPPLES: Black Stainless Steel
  • TIRES: MTB, 27.5/29x2.25"
  • DERAILLEUR, REAR: Shimano Altus, 8-Speed
  • SHIFT LEVER: Shimano Altus 3x8-Speed
  • CRANKSET: Alloy Crank, Steel Chainrings, 42/34/24T
  • BOTTOM BRACKET: Sealed Cartridge Bearings, Square Taper
  • CASSETTE: SunRace 8-Speed, 11-34T
  • BRAKE, FRONT: Tektro M275 Hydraulic Disc, 160mm Rotor
  • BRAKE, REAR: Tektro M275 Hydraulic Disc, 160mm Rotor
  • BRAKE LEVERS: Tektro M275 Hydraulic Disc
  • HANDLEBAR: Marin 31.8 Riser, 12mm Rise, 780mm Width
  • STEM: Marin Alloy, 31.8mm, 45mm
  • GRIPS: Marin MTB, Closed End
  • HEADSET: FSA No.10-P
  • SEATPOST: Marin Alloy, 27.2mm
  • SADDLE: Marin MTB
  • PEDALS: Nylon Platform