Promax SC-1 Square Taper Chromo JIS Bottom Bracket 113mm Black ModelNumber=K9596 Provide a great chainline on

Provide a great chainline on most boost bikes

Kium rails

Peri-Canal design provides a continuous relief channel from tip to tail

• Ventilated back for enhanced moisture transport

Promax SC-1 Square Taper Chromo JIS Bottom Bracket 113mm Black ModelNumber=K9596 Provide a great chainline onSC 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 Bottom Bracket Shell I. D. 1. 37 BB Frame Interface English BB Shell Width (mm) 68 Weight 253