Designed for trail and enduro riding, the Bomber Z1 features the FIT Grip shock, FLOAT EVOL air spring, and 36mm chassis to maximize traction and control. 36mm struts. Improved lower leg stiffness with M-arch design for maximum tire clearance: 15 QR x 110mm Boost AxleFIT Grip Boost Grip shock absorber with adjustable compression and Float EVOL rebound. Specifications: Axle Crown Length: 556 Brake Type 180 Post Mount ColorBlackCrown Race40 Color Defined Color Black. External Adjustments Rebound Damping Front Axle 15mm Thru x 110mm.Lock Switch. Crown. Max Tire Width: 66 Negative SpringAirOffset44Positive SpringAirS.HIS Stem Clamp Diameter: 28.6 Strut Diameter: 36 Head Tube Length (mm) 263 Steering Type Travel Tapered (mm) 160 Wheel Size: 27.5 inches