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437U-520 ULTRALIGHT GROOVED, 39T SilverRenthal UltraLight Rear Chainwheels are CNC machined in Manc...SKU: RN437U-520-39GBSI -
437U-520 ULTRALIGHT GROOVED, 36T SilverRenthal UltraLight Rear Chainwheels are CNC machined in Manc...SKU: RN437U-520-36GBSI -
437U-520 ULTRALIGHT GROOVED, 37T SilverRenthal UltraLight Rear Chainwheels are CNC machined in Manc...SKU: RN437U-520-37GBSI -
437U-520 ULTRALIGHT GROOVED, 38T SilverRenthal UltraLight Rear Chainwheels are CNC machined in Manc...SKU: RN437U-520-38GBSI -
437U-520 ULTRALIGHT GROOVED, 40T SilverRenthal UltraLight Rear Chainwheels are CNC machined in Manc...SKU: RN437U-520-40GBSI