3/8" Thick; Aluminum; Includes longer 5-bolt installation kit.
*Keizer Micro Sprint Brake Rotor Spacer is a 3/8" thick aluminum spacer with holes for a 5 on 3.375" bolt pattern. Designed to work directly with Keizer 10P4 Micro Sprint Left Side Direct Mount Hub and Keizer Micro Sprint Brake Rotor. This spacer includes five longer pan head mounting screws to secure the rotor to the hub.
**Proudly made in the USA.