Marin Bolinas Ridge 1 ST - 2025

With a lightweight aluminum frame, a trail-capable suspension fork, MTB tires and all-condition disc brakes, the Bolinas Ridge has everything you need to break out onto the trails and push your own boundaries.

The Bolinas Ridge ST 1 is the best value model in the ST family, offering bags of bang for very few bucks. Components include powerful Tektro mechanical disc brakes, an SR/Suntour suspension fork and reliable and grippy off-road tires.

This new step-thru frame is only available with 27.5 wheels across the XS - M frame size to keep it as ergonmically accessible as is possible.

Specifications
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 XCE Disc, 100mm Travel, Preload Adjustment, 46mm Offset
Rim Marin, Double Wall Alloy
Hub Rear Forged Alloy, Disc, 32H
Hub Front Forged Alloy, Disc, 32H
Spokes Black Stainless SteelTires MTB, 27.5/29x2.25"
Derailleur Rear Shimano Tourney, 7-Speed
Derailleur Front Shimano FD-TX600
Shift Lever Shimano Tourney 2x7-Speed
Crankset Alloy Crank, Steel Chainrings, 36/22T
Bottom Bracket Sealed Cartridge Bearings, Square Taper
Chain KMC Z8
Cassette Shimano, CSHG200, 7-Speed, 11-32T
Brakes Front Tektro MDM280 Mechanical Disc, 160mm Rotor
Brakes Rear Tektro MDM280 Mechanical Disc, 160mm Rotor
Brake Levers Shimano w/ Integrated Shifters
Handlebar Marin 31.8 Riser, 12mm Rise, 780mm Width, XS/S models have 740mm 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

Specifications, pricing, and availability are subject to change without notice.