TDPRO 9.45" 240mm Rear Shock Absorber Sensa Trac for Dirt Pit bikes ATV Load Adjust Suspension 1200lbs Eye center to center : 9.45" (240mm) Mounting hole diameter: 0.4" (10mm) Load capacity: 1200 lbs, Shock travel: 2.56" (65mm) Fit Dirt Pit bikes and some atv 4 wheelers quad with same size and spring intensity This dirt bike shock absorbers with special modifiers to reduce friction and ensure smooth rod reaction