This is a new old stock oval / biopace sr Sakae 42 tooth chainring 130bcd. Check pics for condition
Vintage Shimano 39 Tooth Chainring 130 BCD SG 39t 9s Speed Original Crown
NOS Shimano Biopace 52 Tooth Chainring 130 BCD Gray Original Packaging
Crank Arm Set Wide Tooth Chainring 104 BCD Mountain Road
42 Tooth Chainring SE Powder Blue 110/130 BCD 5 Bolt Old School Bmx
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NOS Vintage SR Sakae OVALTECH 170 Right Crank With 48/38/28 T Chain Rings
