RockShox: Cross-country purists … We see you. You’re why SID SL Ultimate is the lightest XC fork on the trail. Now, with Flight Attendant, it is the smartest, most efficient, and most technologically-advanced fork on the start line. SID SL Ultimate Flight Attendant features the new three-position Charger Race Day 2 Flight Attendant electronic damper that automatically changes suspension state between Open, Pedal, and Lock positions faster than you can think. Focused on maximizing efficiency and maintaining speed on course, SID SL Ultimate Flight Attendant is the platform that serious podium contenders want on their side. FEATURESNEW Remove suspension complexity to elevate your ride experience. Flight Attendant has an all new algorithm that uses a suite sensors to read rider and terrain inputs to anticipate the perfect suspension position. No other suspension system has this level of personalization to match your riding preferences, your terrain, your style, and your physical capabilities. Elevate your ride.NEW Adaptive Ride Dynamics enables the Flight Attendant system to learn from the rider to make smarter, more personalized decisions for greater efficiency and even more speed.NEW Charger Race Day 2 Flight Attendant electronic damper features an automatic three position Compression adjustment (Open/Pedal/ Lock positions) with independently adjustable Rebound.AXS-enabled and cable free, Flight Attendant is an integrated part of the SRAM AXS ecosystem, meticulously crafted to disappear.Our lightest 32mm chassis ever. World Cup proven performance, built for your next podium result. Longer-travel 110mm option, in case you’re feeling extra.Machined crown for lighter weight and greater strength.Covetable “Blue Crush” signature colorway and Ultimate High Gloss Black, featuring the new lustrous Pearl White Flight Attendant graphics package.Maxima Plush Dynamic Suspension Lube reduces friction, lasts longer, and enhances suspension performance ride after ride.DebonAir air spring is tuned specifically to meet the demands of XC and maintains a higher ride height for increased confidence and control.Shared battery with all SRAM AXS-enabled components.Flight Attendant System is waterproof to IPX7 rating.Flight Attendant system only gets better with the more AXS components you pair into the system. SPECIFICATIONSModel designator (SF) Ultimate Flight AttendantWheel size 29Travel (mm) 110mmDamper TypeFlight Attendant Race DayFork offset 44mm (29)Maxle included Maxle StealthColour (FS) SID Blue Crush - Gloss / Gloss BlackE-Bike Approved Not ApprovedSteerer 1.5 TaperedAxle 15x110mm BOOST™Axle to Crown (mm) 516Brake type (FD) DiscCrown Material Forged, hollow aluminumLower leg type MagnesiumUpper Tube Finish Fast BlackUpper tube type 32mm straight wall aluminumDamper adjust Flight Attendant ControlledDamping adjustments Extl rebnd, E-cont. 3 pos comp (open/pedal/lock)Volume reducer 0/3 TokensSpring DebonAirMax Tire Diameter (mm) 751Max Tire Width (mm) 60Maximum Rotor Size 200mmMinimum Rotor Size 160mmCrown OD (mm) 56Max recommended system weight 331lbs/150kg