Narrow Wide Steel Chainring - 40T. Narrow/Wide Chainring. Chainring Bolts NOT Included.
40T/56T Chainring w Cover BCD130 for Brompton Schlumpf Drive (H&H)
Aluminum alloy Bicycle Chain Guide For 32-40T Oval Chainring
40T Steel Chainring for Bosch Gen 4 & 5 Direct Mount - 53mm Chainline - 9-12 Spd
UK Chain Guide 03 Mount 4-5.1IN For 30-40t BIKE Chainring System in CNC Alloy
Shimano Acera FC-M3000 40T-AX Chainring - 3x9 Speed - 96 BCD
40T Chrome Chainring Chainwheel To Fit OPC One Piece Crank Old School BMX
