Problem Solvers Anodized Alloy Spacer (Black) (7 Speed) (4.5mm) - NCS-4.5Z
Problem Solvers Anodized Alloy Spacer (Black) (7 Speed) (4.5mm) - NCS-4.5Z, Problem Solvers Cassette Spacer Features: Allows 7 speed cassettes to be mounted on 8 or 9-speed freehubs Anodized alloy 4.5mm