Any trail, any time. Light where it counts and ruthless on the descents. With Flight Attendant on board, Lyrik Ultimate is unrivaled—its improved algorithm personalizes every adjustment to your preferences, terrain, and effort, so you can charge without hesitation. LinearXL air spring 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 interval Flight Attendant Charger 3.2 damper provides riders with race-winning efficiency and control and achieves virtually silent performance, keeping riders focused on the trail ButterCups technology block 20% of high-frequency “trail chatter” to reduce hand and arm fatigue SRAM Model ID: FS-LYRK-UFA-E1 Attributes Brake Type Disc Damping Charger 3.2 Flight Attendant W/ButterCups Damping Adjustments Extl rebnd, E-cont. LS comp and 3 pos comp (open/pedal/firm) Crown Material Aluminum Rake 44mm Maximum Rotor Size 220mm Maximum Tire Width 70mm Spring Adjustments Air pressure, Bottomless tokens Spring Type Linear XL W/ButterCup Steerer Tube 1-1/8''-1.5'' Steerer Tube Material Aluminum Lower Tubes Material Magnesium Stanchions Material Aluminum Travel 160mm Wheel Diameter 29'' Stanchions Diameter 35mm Axle/Hub spacing 15x110mm TA e-Bike approved Yes