??Universal??Motorcycle Air shock absorber universal fit for most vehicles.Thickness of upper hole are 20.5mm/30mm/32mm ,the diameter of the round hole at the bottom is 12mm, spring is 10MM and the length between holes to hole is 370mm. ??Length of Eye to Eye Core: A Pair of Round Hole 370mm Aluminum and solid steel motorcycle shock absorbers.Thickness of upper hole are 20.5mm/30mm/32mm will work for it. ??Full Displaced Valving: Tuned specifically for each application, this valving automatically adjusts to road extremes to provide consistency and ride comfort Package included ??1 x Shock Absorber, 1 x Wrench, 1 x Bushing Motorcycle shock absorber universal fit for most vehicles.In general, the size of the original shock absorber hole to hole is the same as the product, and it can be installed. Fitment: Universal Fit. Work perfectly and will be compatible on most 50cc, 75cc, 90cc, 125cc, 150cc, 250cc, 300cc Street bikes, Dirt bikes, Gokart, ATV, Motorcycles and Quad Please check below dim