Rock Shox ZEB Ultimate Flight Attendant - 29" Boost Fork Faster everywhere. The Rock Shox ZEB Ultimate Flight Attendant is the pinnacle of what an enduro fork can be. Flight Attendant's fully wireless, AXS-enabled automatic suspension system reads you and the trail in real time-adapting on the fly for smarter efficiency and speed, no manual adjustment required. The all-new Linear XL air spring with Butter Cup delivers a coil-like ride feel, backed by Adjustable Bottom Out (ABO) for confident end-stroke control, while Butter Wagon Tech keeps a constant oil supply to the bushings for smooth, consistent performance across the entire service interval. Features Flight Attendant Charger 3. 2 damper with Butter Cups automatically adapts compression in real time via AXS wireless technology, delivering race-winning efficiency and virtually silent performance New Linear XL air spring with Butter Cup delivers a consistent, coil-like ride feel backed by Adjustable Bottom Out (ABO) for confident, predictable end-stroke control Butter Wagon Tech upper tube finish ensures a constant supply of oil to the bushings, reducing friction and maintaining smooth performance throughout the full service interval Butter Cups technology blocks up to 20% of high-frequency trail chatter to reduce hand and arm fatigue on the roughest terrain Integrated short fender mount with ZEB Integrated Fender included for added versatility Low-grab SKF wiper seals and Maxima 920 blended 15w oil reduce friction for long-lasting, consistent fork performance SPECIFICATIONSWheel Size29"Damper Type Charger 3. 2 Flight Attendant W/Butter Cups Spring Linear XL W/Butter Cup Bottom Out Externally Adjustable Bottom Out (ABO)Damping Adjustments External Rebound, E-cont. Low-Speed Compression, 3-position Compression (Open/Pedal/Firm)Axle15x110mm BOOST(TM) TC Compt (Maxle Stealth included)Steerer1. 5" Tapered Axle to Crown586mm Upper Tube Type38mm aluminum Lower Leg Material Magnesium Crown OD59mm Volume Reducer0/4 Tokens Maximum Rotor Size220mm E-Bike Approved Yes Intended Use Trail, Enduro, All-Mountain | Rockshox | Zeb Ultimate B1 Flight Attendant 29" Fork 29", 170Mm, 44Mm Offset, Black