The perfect blend of performance, value and fun, the Marin Bolinas Ridge is ideal for riders that are new to mountain biking or simply want a low-hassle, low-cost bike to explore off-road. The Bolinas Ridge 2 is Marin's upgraded Bolinas, stepping up the fun and the components. The Bolinas Ridge 2 gets Clark’s Hydraulic disc brakes and features a SR/Suntour suspension fork, reliable and grippy off-road tires and plenty of Marin components. Depending on size, the Bolinas Ridge comes with either smaller 27.5” (sizes XS to M) wheels or larger (sizes M to XL) wheels to guarantee a perfect fit. SIZING - XS: 4'10 - 5'2 S: 5'2 - 5'5 M: 5'5 - 5'9 L: 5'9 - 6' XL: 6' - 6'4 SPECIFICATION - Frame - Series 1 6061 Aluminium, 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 Rim - Marin, Double Wall Alloy Hub Rear - Forged Alloy, Disc, 32H Hub Front - Forged Alloy, Disc, 32H Spokes - Black Stainless Steel Tires - MTB, 27.5/29x2.25" Derailleur Rear - Shimano Altus, 8-Speed Derailleur Front - Shimano FD-TY700 Shift Lever - Shimano Altus 3x8-Speed Crankset - Alloy Crank, Steel Chainrings, 42/34/24T Bottom Bracket - Sealed Cartridge Bearings, Square Taper Chain - KMC Z8 Cassette - SunRace 8-Speed, 11-34T Brakes Front - Clark's Clout Hydraulic Disc, 160mm Rotor Brakes Rear - Clark's Clout Hydraulic Disc, 160mm Rotor Brake Levers - Clark's Hydraulic 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