110bcd Double Chainring 50T/34T 8S 9S 10S 11 Speed Ultralight 5 Bolt Chainring 110 Bcd for Road Bike Aluminum Bicycle Chainwheel

110bcd Double Chainring 50T/34T 8S 9S 10S 11 Speed Ultralight 5 Bolt Chainring 110 Bcd for Road Bike Aluminum Bicycle Chainwheel

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