RockShox: We can claim it because it’s true. Choosing SID SL Ultimate means the lightest, fastest XC fork in the world, full stop. Chiseled down to every last meaningful gram, SID SL Ultimate features the new Charger™ Race Day 2 damper. Light. Speed. Performance. Podium.FEATURESNEW Our lightest 32mm chassis ever created. Proven World Cup performance ready for your podium debut.NEW Charger™ Race Day 2 Damper — Every detail perfected, every extra ounce shaved away; this is our lightest performance driven damper ever. This 3P damper features three compression positions: Open, Pedal, or a rock-solid Lockout.DebonAir™ air spring is tuned specific to meet the demands of XC and maintains a higher ride height for increased confidence and controlNEW Maxima Plush Dynamic Suspension Lube reduces friction and enhances fork performance ride after ride.NEW crown machined to perfection for lighter weight and greater strength.NEW Blue Crush signature colorway and Ultimate High Gloss Black featuring new lusty Pearl White graphics package.NEW bolt-in torque cap adapters included for use with standard hub end caps.Maxima Plush damping fluid reduces friction and silences damper noise.SID D1 remote lockout forks require purchase of corresponding remote: 2 position – R8079000, 3 position – R8079001 SPECIFICATIONSModel designator (SF): UltimateWheel size: 29Travel (mm): 100mm, 110mmDamper Type: Charger Race DayFork offset: 44mm (29)Maxle included: Maxle StealthColor (FS): SID Blue Crush - Gloss, Gloss BlackE-Bike Approved: E-bike ApprovedSteerer: 1.5 TaperedAxle: 15x110mm BOOST™Axle to Crown (mm): 506, 516Brake type (FD): DiscCrown Material: Forged, hollow aluminumUpper crown type: n/aLower leg type: MagnesiumUpper Tube Finish: Fast BlackUpper tube type: 32mm straight wall aluminumDamper adjust: CrownDamping adjustments: Extl rebnd, 3 pos comp (open/pedal/lock)Volume reducer: 0/3 TokensSpring: DebonAirSpring rate: n/aMax Tire Diameter (mm): 751Max Tire Width (mm): 60Maximum Rotor Size: 200mmMinimum Rotor Size: 160mmFender Compatibility: n/aCrown OD (mm): 56