The Bolinas Ridge series is perfectly suited for recreational riders wishing to explore singletrack and dirt trails with a mountain bike built for real trails. The Bolinas Ridge 2 is built around a Series 1 6061 aluminum frame with a replaceable derailleur hanger and an integrated headset. Spec’d with a trail munching 100mm travel SR Suntour XCM suspension fork, Tektro M275 hydraulic disc brakes for high performance braking in any trail conditions, durable double wall rims, serviceable cassette freehubs and reliable 3x8 speed Shimano Altus drivetrain. The Bolinas Ridge has a growing wheel size for the best fit and performance for all rider heights, with sizes XS, SM and MD fitted with 27.5” wheels and 29” platforms on sizes L, XL, and XXL.