54 tooth, 6 bolt, 152 BCD.
Vintage TA... 50 tooth alloy chain-ring , 6 bolt , 152 BCD
NOS VINTAGE TA CHROME SEAT TUBE BOTTLE CAGE CLIPS AND BOLTS
Vintage TA Road Bike Chainring 38T 80mm BCD 6-Bolt + 50.4mm Spider Used VN-26-A8
Vintage TA Road Bike Single Chainring 42T x 80 mm BCD 6-Bolt Dural Used VN-24-A8
Vintage TA Road Bike Chainring 46T 50.4mm BCD Used Marked / Age VN-28-A8
