julio 28, 2026
julio 28, 2026
Vintage Shimano Biopace 52t Chainring 600 52 Tooth 130 BCD Silver Oval 80s Could use cleaning
julio 28, 2026
Biopace oval profile with computer designed drive system graphic and anti-drop positioning pin, marked "Shimano Biopace 52" with MB code. Teeth show no chain wear, with only light surface marks from handling.
julio 28, 2026
Tooth counts: 52T outer and 42T inner, both stamped SUGINO 52 AJ and SUGINO 42 AJ on the faces. Lightly used Sugino 52/42T chainring set.
julio 28, 2026
Tooth counts: 52T outer and 42T inner, both stamped SUGINO 52 AJ and SUGINO 42 AJ on the faces. Lightly used Sugino 52/42T chainring set.
julio 28, 2026
julio 28, 2026
julio 28, 2026
julio 28, 2026
julio 28, 2026
This Avitar Werx Ring 53 Tooth Chainring has a 135 BCD for Campagnolo 5 Bolt cranksets. It's made in the USA and it's HEAT TREATED. NOS!
julio 28, 2026
This Avitar Werx Ring 53 Tooth Chainring has a 135 BCD for Campagnolo 5 Bolt cranksets. It's made in the USA and it's HEAT TREATED. NOS!
julio 28, 2026
48T chainring 112/68 mounting 4 spoke never opened never used