Promax SC-1 Square Taper Chromoly JIS Bottom Bracket 108mm Black CheckoutSpec= Shopping Bag Trailer Color Black Lower Stack Height

Color Black Lower Stack Height 4 Bearing Type Cartridge Crown Race 30 Weight 66 Defined Color Black Upper Stack Height 15 S

Compatible with steel CroMo titanium and carbon standard saddle rails with 36mm width spacing and at least 30mm height spacing

a gold aluminum thread ring

RAMP Tube Technology allows riders to add 20-35% more progression than typical coil shocks (30psi max)

and enjoy smoother rides wherever you wander with the all-new torque sensor that responds to the way you ride

Promax SC-1 Square Taper Chromoly JIS Bottom Bracket 108mm Black CheckoutSpec= Shopping Bag Trailer Color Black Lower Stack HeightPromax SC 1 Square Taper Chromoly JIS Bottom Bracket 108mm Black. SC 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 TECH SPECS Bottom Bracket Shell