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The Bolinas Ridge bikes have everything you need to break out onto the trails and push your own boundaries. With a lightweight aluminum frame, a trail-capable suspension fork, MTB tires and all-condition disc brakes, offering the best bang for your bucks.
Similar to the Bolinas Ridge 2, the Bolinas Ridge 2 ST mountain bike is our upgraded Bolinas, stepping up the fun and the components even further. The Bolinas Ridge ST 2 gets an upgrade to Tektro Hydraulic disc brakes and features a SR/Suntour suspension fork and a wide range Shimano 1 x 8 Essa drivetrain and gearing.
This new step-thru frame is only available with 27.5 wheels across the XS - M frame size to keep it as ergonomically accessible as is possible.
SPEC AND PRICE BEING SUBJECT TO CHANGE WITHOUT NOTIFICATION
Series 1 6061 Aluminum, 27.5”/29" Wheels, Low Standover, 68mm BB shell, 135mm Forged Dropouts, Chainstay Mounted Disc Brakes
SR Suntour XCM DS, 100mm Travel, Preload Adjustment, 46mm Offset
Marin, Double Wall Alloy
Forged Alloy, Disc, 32H
Forged Alloy, Disc, 32H
Black Stainless Steel
MTB, 27.5/29x2.25"
Shimano Essa, 8-Speed
Shimano Altus 1x8-Speed
Alloy Crank, Steel Narrow/Wide Chainring, 32
Sealed Cartridge Bearings, Square Taper
KMC Z8
Shimano 8-Speed, 11-45T
Tektro M280 Hydraulic Disc, 160mm Rotor
Tektro M280 Hydraulic Disc, 160mm Rotor
Tektro Hydraulic
Marin 31.8 Riser, 12mm Rise, 780mm Width
Marin Alloy, 31.8mm, 45mm
Marin MTB, Closed End
FSA No.10-P
Marin Alloy, 27.2mm
Marin MTB
Nylon Platform

| XS | S | M | |
|---|---|---|---|
| ASTACK | 586 | 592 | 596 |
| BREACH | 420 | 435 | 445 |
| CHEADTUBE ANGLE | 67.5° | 67.5° | 67.5° |
| DHEADTUBE LENGTH | 100 | 105 | 110 |
| ESEATTUBE LENGTH | 330 | 381 | 431 |
| FSEATTUBE ANGLE | 74.5° | 74.5° | 74.5° |
| GTOPTUBE EFFECTIVE | 583 | 599 | 610 |
| HBB HEIGHT | 307 | 307 | 307 |
| IBB DROP | 48 | 48 | 48 |
| JCHAINSTAY | 438 | 438 | 438 |
| KWHEELBASE | 1124 | 1141 | 1153 |
| LSTANDOVER HEIGHT | 514 | 515 | 568 |
| MFORK OFFSET | 42 | 42 | 42 |
| NSEATPOST DIAMETER | 27.2 | 27.2 | 27.2 |
| OHANDLEBAR WIDTH | 740 | 740 | 740 |
| PSTEM LENGTH | 45 | 45 | 45 |
| QCRANK LENGTH | 170 | 170 | 170 |