CompactGear BCR-37S

Great Western Bicycle Company Verified independent store

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5-arm road chainrings. CNC machined 7075 T6 aluminum. Compatible with: Shimano Tiagra 4550/4650, 105 5650/5750, Ultegra 6650/6750 and Dura Ace 7950. BCD: 110 mm. Available sizes: 4 6T, 50T, 52T Includes Shimstars (BCR-61) to maintains original aesthetics. MSRP: $89.90 Show more