40T Chainring & Spider Set to Suit Bosch Gen. 4 & 5 Motors - 52mm Chainline. 52mm Chainline. Alloy Spider, Alloy Bolts, Steel Chainring. E-Bike Chainring.
YBEKI Mountain Bike Chainring Guard 104 BCD 32T 34T 36T/38T 40T 42T Chainring Protector Cover Aluminum Crankset Guard for Bicycle Chainwheel Accessories (Red, for 32T 34T 36T)
YBEKI Mountain Bike Chainring Guard 104 BCD 32T 34T 36T/38T 40T 42T Chainring Protector Cover Aluminum Crankset Guard for Bicycle Chainwheel Accessories (Black, for 32T 34T 36T)
Electric Bike Spider Chainring Adapter for Tongsheng Motor 46T 52T Set
Sram Spare Crank Mounting Bolt Kit Removable Spider/Chainring Direct Mount 8Pcs
Bosch Ebike Motor Lock ring Spider Chainring BDU4XX BDU37YY
Brompton Chain Guard for 130mm BCD 50T spider chainring (post 2013)
