RockShox: Born from the DNA of Lyrik and BoXXer and here for the new generation of long-travel mountain machines. The all-new ZEB Ultimate is packed with performance in a stout 38mm chassis and features the updated highly tunable DebonAir™ air spring for increased confidence in steeper terrain. Perfectly matched with the Charger™ 2.1 damper, ultra-low friction SKF wiper seals and Maxima Plush Fluid, Zeb Ultimate not only looks the part but performs no matter the ride or conditions.FEATURESNew 38mm chassis for increased stiffness and rider confidenceUpdated highly tunable DebonAir™ air spring offers a buttery smooth feel off the top and maintains a higher ride height for increased confidence in steep terrainCharger 2.1 RC2 damper featuring independent high and low speed compression adjustDual Position Air adjustment option to change the geometry of the bike for climbs and descentsUltra-low friction SKF wiper seals provide long lasting fork performance and improve overall suspension feelMaxima Plush damping fluid reduces friction and silences damper noiseSlab Grey Signature colorway and Ultimate High Gloss BlackUltimate foil graphics packageShort fender compatible (RockShox fender sold separately) SPECIFICATIONSModel designator (SF): UltimateWheel size: 27.5Travel (mm): 160mm ,170mm, 180mmDamper Type: Charger 2.1 RC2Fork offset: 38mm (27.5)Maxle included: Maxle StealthColor (FS): Gloss Black, GreyE-MTB Decal: NoSteerer: 1.5 TaperedAxle: 15x110mm BOOST™Axle to Crown (mm): 557, 567, 577Brake type (FD): DiscCrown Material: Forged, hollow aluminumUpper crown type: n/aLower leg material: MagnesiumUpper Tube Finish: Fast BlackUpper tube type: 38mm aluminumDamper adjust: CrownDamping adjustments: Extl begin stroke rebnd, low speed comp, high speed compVolume reducer: 2/5 Tokens, 1/4 Tokens, 0/4 TokensSpring: DebonAirSpring rate: n/aMax Tire Diameter (mm): 732Max Tire Width (mm): 81Maximum Rotor Size: 220mmMinimum Rotor Size: 200mmFender Compatibility: Short, 3 point mountCrown OD (mm): 63Part Weight (g): 2296