Length Hole Distance:125mm/4.92″,The diameter of the hole is 8mm Bearing weight 750lb Fitment Fit for mountain bikes,electric bikes and other bicycle,ATV Go-Kart Scooter 49cc High-quality Quality metal shell and spring, long service life and greatly improve the shock resistance of the shock absorber. Main Function This shock absorber makes your journey smoother.It Helps to solve the trouble that the shock plate is too short and the low plate often touches the ground.This gives you a better cycling experience Notice Please determine the model and size before the purchase parts is a brand that focuses on dirt, bike, ATV, go, kart and other motorcycle & powersports accessories. Our accessories include commonly used replacement parts and personalized modifications. We will update our products all the time, and the parts you need will appear in our shop. If you have any questions about the product, please leave a question or let us know by email, we will answer for you. If you have more needs, please let us know by email. We are happy to serve you. Believe me, when you placed your order for the first time, the long story between us is just beginning.