SINZ ISIS Bottom Brackets
Sinz ISIS Pro Euro BMX Bottom Brackets feature a cnc machined center shell with alloy cups.
- Chromoly spindle with 3 low friction precision bearings
- CNC machined center shell with alloy cups
- Comes in 68 X 108, 113 & 118mm lengths
- Sinz strongest and premiere bottom bracket
Fits 3 piece cranks with isis BB such as Sinz, Truvativ and AC crank arms