38mm chassis for increased stiffness and rider confidence ButterCups block 20% of high frequency “trail chatter”. Limiting these vibrations massively reduces hand and arm fatigue leaving you feeling fresh with more control. Charger 3 features a completely new Internal Floating Piston (IFP) design with better fidelity, performance and truly independent adjustments without any ''cross talk''. DebonAir+ is built to strike the perfect balance of what riders really want: butter-like small bump feel, increased air volume, and higher overall ride height. Ultimate Bushing Package maximizes the fork’s bushing overlap, reducing friction and creating the smoothest ride possible Pressure Relief Valves eliminate unwanted air pressure build up in the lower leg caused by variations in altitude or temperature Includes premium short fender SRAM Model ID: FS-ZEB-ULT-A2 Attributes Axle/Hub spacing 15x110mm TA Brake Type Disc Crown Material Aluminum Damping Charger 3 RC2 Damping Adjustments Extl begin stroke rebnd, low speed comp, high speed comp e-Bike approved Yes Lower Tubes Material Magnesium Maximum Rotor Size 220mm Maximum Tire Width 81mm Primary Color Black Rake 44mm Spring Adjustments Air pressure, Bottomless tokens Spring Type DebonAir+ Stanchions Diameter 38mm Stanchions Material Aluminum Steerer Tube 1-1/8''-1.5'' Steerer Tube Material Aluminum Travel 170mm Wheel Diameter 27.5''