Bottom Bracket 19mm Bearing Kit 2011 Specialized P. 20 Amateur
2 x sealed bearings for BMX frame with a Mid BB shell , designed to work with any crank that has a 19mm axle and will work with your existing BB cone spacers! MID-19MM (19.05x41.275x11.11) (3/4 x 1.5/8 x 7/16) R12-2RS