Narrow-wide sprocket, whose task is to keep the chain in place without using the chain tensioner. The special shape of the teeth prevents the chain from falling off the rack. Compatible with drives: 1x1, 1x9, 1x10, 1x11 and 1x12sp. Made of aluminum.
Number of teeth: 32, 34, 36, 38, 40T
Hole spacing: 104mm standard (BCD 104, 4 holes)
Material: aluminum
Black colour
Chainline: 50.5mm (48.5mm - 30T)