Problem Solvers Cassette Spacers

4.5mm Anodized Alloy Spacer for 7-speed cassette mounted on 8/9-speed hubs 11spd Freehub Body Conversion Spacer for 10 speed Cassettes on 11speed Freehub 3.0mm Black Anodized Spacer Spacer 35mm Thick 375mm OD Spacer 3.5mm Thick 37.5mm OD