TRP, BB Spacer Tube, BB-BSA-80 BSA 83

This TRP spacer tube is a service part for the BB-BSA-80 bottom bracket, sized to fit an 83mm shell and maintain correct spindle spacing and chainline. It's a precise-fit replacement for mechanics rebuilding or adjusting TRP's threaded bottom brackets. Small, inexpensive, and essential for a properly seated crankset.