Promax SC-1 Square Taper Chromoly JIS Bottom Bracket 108mm Black MFPN=8030819239713 Large OD ovalized crossbar for

Large OD ovalized crossbar for dent resistance and strength

model Femto USB C Drive Front lumens 50 modes 6 rechargeable yes color red weight 23

Requires DT Swiss 3-pawl and Star Ratchet tools for installation ( J&B #69670 / #610635)

Recommended maximum rider weight 150lbs

Promax SC-1 Square Taper Chromoly JIS Bottom Bracket 108mm Black MFPN=8030819239713 Large OD ovalized crossbar forSC 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