Photo 1 of 104mm BCD Narrow Wide Tooth Round Bicycle Chainring 40T 42T 44T 46T 48T 50T 52T CNC Machined Alloy Fits 8 to 12 Speed Chains (42T Round Chainring)

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Photo 1 of 104mm BCD Narrow Wide Tooth Round Bicycle Chainring 40T 42T 44T 46T 48T 50T 52T CNC Machined Alloy Fits 8 to 12 Speed Chains (42T Round Chainring)Photo 2 of 104mm BCD Narrow Wide Tooth Round Bicycle Chainring 40T 42T 44T 46T 48T 50T 52T CNC Machined Alloy Fits 8 to 12 Speed Chains (42T Round Chainring)