JTRHD Bike Chain Ring Single Speed Direct Mount 30T-40T Round Chainring Bicycle Crankset 3 Degree for Outdoor Cycling (Color : Black, Size : 32T) : Amazon.co.uk: Sports & Outdoors
JTRHD Bike Chain Ring Bike Chain Wheel 50/52/54/56/58T 130BCD Bike Single Speed Chainring Bicycle Parts for Outdoor Cycling (Color : Black, Size : 56T) : Amazon.co.uk: Sports & Outdoors
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