Gusset MXR Euro BB

To be the fastest, you want lightweight products, and at 133g the MXR BB is just that.
The ultimate in lightweight BBs for BMX 19/20mm cranksets.
CNC alloy cups with English threads. CNC alloy spacers (for 68mm Euro BBs)
4 replaceable sealed cartridge bearings.
19/20mm inner diameter
Black - 133g