RockShox: A striking balance of light weight and exceptional downhill performance, the new SID finds a new level of confidence and defines what modern XC race bikes are capable of. The new SID Ultimate is built with more travel, an all-new stiff 35mm chassis that features our lightest damper to date, the new Charger Race Day. This race-ready package also includes the redesigned DebonAir air spring, tuned specifically for the demands of XC riders. Our friends at SKF and Maxima Plush Fluids come along for the ride, providing long lasting fork performance and improved overall suspension feel. Lighter and more capable than ever before, SID will get you to the finish line faster.FEATURESNew 35mm chassis is the perfect blend of light weight and stiffness for the modern XC bikeNew Charger Race Day Damper - our lightest production damper with rock-solid lockoutNew DebonAir™ air spring is tuned specific to meet the demands of XC and maintains a higher ride height for increased confidence and controlNew Ultra-low friction SKF wiper seals provide long lasting fork performance and improve overall suspension feelMaxima Plush damping fluid reduces friction and silences damper noise29 wheel only120mm max travelMachined/anodized crown2-bolt mounts to fit a short fender (RockShox fender sold separately)Signature SID Blue colorway and Ultimate High Gloss BlackUltimate foil graphics package SPECIFICATIONSModel designator (SF): UltimateWheel size: 29Travel (mm): 120mmDamper Type: Charger Race DayFork offset: 44mm (29)Maxle included: Maxle StealthColor (FS): Gloss BlackE-MTB Decal: NoSteerer: 1.5 TaperedAxle: 15x110mm BOOST™Axle to Crown (mm): 531Brake type (FD): DiscCrown Material: Forged, hollow aluminumUpper crown type: n/aLower leg material: MagnesiumUpper Tube Finish: Fast BlackUpper tube type: 35mm tapered wall aluminumDamper adjust: CrownDamping adjustments: Extl rebnd, 2 pos comp (open/lock)Volume reducer: 0/3 TokensSpring: DebonAirSpring rate: n/aMax Tire Diameter (mm): 758Max Tire Width (mm): 66Maximum Rotor Size: 220mmMinimum Rotor Size: 180mmFender Compatibility: Short, 2 point mountCrown OD (mm): 58