ZEB Ultimate is built for the most extreme terrain-steep double-black runs, freeride features, and even the pedal back up if that's in the cards. And with Flight Attendant on board, ZEB Ultimate is unrivaled- its improved algorithm personalizes every adjustment to your preferences, terrain, and effort, so you can charge without hesitation. The Linear XL air spring delivers a coil-like ride-supple off the top, supportive through the mid-stroke, and backed by Adjustable Bottom Out (ABO) for confident end-stroke control-giving you unwavering consistency and predictability. Found only in our Ultimate forks, ButterWagonTech ensures a constant supply of oil to the bushings, reducing friction, and maintaining smooth performance throughout the entire service interval. Flight Attendant Charger 3.2 damper with ButterCups technology provides riders with race-winning efficiency and control. ZEB delivers the composure riders need to confidently pick their line and hold it-no matter how extreme the trail.Flight Attendant automatic suspension system listens to you and the trail, adapting in real time for smarter, more personalized efficiency and speed fully wireless, AXS-enabled, and seamlessly integrated to disappear into your ride (Includes AXS Battery and Charger)Linear XL air spring delivers a consistent and predictable ride feel backed by Adjustable Bottom Out (ABO) for end-stroke control ButterWagonTech ensures a constant supply of oil to the bushings, reducing friction and maintaining smooth performance throughout the entire service intervalFlight Attendant Charger 3.2 damper provides riders with race-winning efficiency and control and achieves virtually silent performance, keeping riders focused on the trailLow-grab SKF wiper seals deliver long-lasting fork performance and a smoother rideButterCups technology block 20% of high-frequency trail chatter to reduce hand and arm fatigueLyrik wider crown boosts stiffness for improved steering and climbing efficiency while post-forging machining inside and out adds precision without adding weight keeping riders confident, up and downLower arch delivers increased stiffness for precise handling under load while maintaining full tire clearance even with a full fenderIncludes bolt-on fenderIntegrated fender mount (ZEB Integrated Fender sold separately)Maxima 920 blended 15w reduces overall fork frictionItem SpecificationsAxle to Crown Length586Brake TypePost Mount 200ColorGloss BlackCrown Race40Defined ColorBlackFront Axle15mm Thru x 110mmkeyword searchRockShox Model Year 27keyword searchRockShox MY27Lockout SwitchCrownMaximum Tire Width74.5Negative SpringAirOffset44Positive SpringAirS.H.I.S. Stem Clamp Diameter28.6Stanchion Diameter38Steerer TypeTaperedTravel (mm)170Wheel Size29" RockShox ZEB Ultimate Flight Attendant Charger 3.2 Suspension Fork Suspension Fork UPC: 710845926815