Promax SC-1 Square Taper Chromoly JIS Bottom Bracket 108mm Black Weight (Grams)-853 Cnc machined plate and anti-slip

Cnc machined plate and anti-slip rubber wrapped wheel hook

gravel and any drop-bar bike

}SRAM RED Aero X-Sync Direct Mount Chainring - 46t 12-Speed 8-Bolt Direct Mount 6

Specialized

Promax SC-1 Square Taper Chromoly JIS Bottom Bracket 108mm Black Weight (Grams)-853 Cnc machined plate and anti-slipSC 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 246