Rock Shox SID Select 3-Position Fork Fast, redefined. For those who live for XC racing, but love to do more than just race, the Rock Shox SID Select Fork is for you. With a new 35mm stanchion to add rigidity without adding weight, and trickle-down technology from the SID Ultimate, Rock Shox has engineered a robust fork that doesn't skimp on lightweight performance for the climb and the descent. With the ultra-light Charger(TM) RL Damper, the SID Select blends lightweight performance with long-lasting durability, and features an "Open" pedaling mode, an efficient "Pedal" mode, and a fully locked-out "Lock" mode. The Debon Air+ spring offers buttery-smooth small bump compliance, and support throughout the fork's travel, and is compatible with Bottomless Tokens for even more customization. Modern XC riders, your fork has arrived. Features Charger(TM) RL damper combines ultra-lightweight performance with predictable durability, with an Open, Pedal, and a full Lock mode Debon Air+ air spring provides supple small bump compliance, better mid-stroke support, and a higher ride height Maxima Plush suspension fluid for smoother operation and increased longevity New 35mm chassis provides the rigidity needed for fast descents, with the cross-country efficiency and light weight needed for the most grueling climbs110 or 120mm travel options to tackle the toughest XC courses and fastest rides Compatible with Bottomless Tokens letting riders tune the feel, ramp-up, and bottom-out resistance to their liking SPECIFICATIONSTravel110 or 120mm Lockout Yes Axle Type15x110mm BOOST(TM)Steer Tube Diameter1. 5" Tapered Stanchion Diameter35mm Wheel Size29"Spring Debon Air+Damper Charger(TM) RLBrake Compatibility Post mount Max Rotor Size220mm Min Rotor Size180mm Intended Use Cross-Country, Weight1646 gramse-Bike Approved Not Approved | Rockshox | Sid Select 3 Position | Black | 120Mm, 44Mm Offset, Crown Adjust