NEW Promax SC-1 Square Taper Chromoly JIS Bottom Bracket 108mm Black type_lights-reflectors completely re-engineered for 1x systems

completely re-engineered for 1x systems and the innovative X-Sync 2 chainrings

stable ride that instills confidence whether it’s the first or fourth hour of your weekend grind

tool-free mounting make MSW Mouse lights a great economical pick to be seen on the road

Seamless integrated 5in wide gripper on hem

For use with clamp-on front derailleurs

NEW Promax SC-1 Square Taper Chromoly JIS Bottom Bracket 108mm Black type_lights-reflectors completely re-engineered for 1x systemsSC 1 bottom brackets are the perfect choice for those who still prefer the low weight and simplicity of square taper cranks. Each bottom bracket is hand assembled using a hollow chromoly spindle, precision sealed bearings, forged and CNC machined alloy cups and a composite center spacer seal. Hollow chromoly spindle CNC machined alloy cups JIS square taper Defined Color: Black Bottom Bracket Shell I. D.: 1. 37 Spindle Length: 108 Spindle Interface