Specifications: 12T. Apply for most rear derailleur of 12 teeth in the market. Positive and negative tooth wheel can effectively inhibit the horizontal swing of the chain, so that the speed is more accurate.
Bike Rear Derailleur Pulley Guide Roller Aluminum Alloy Ultralight 12T/14T
FOVNO Rear Derailleur Pulley Guide Set 12T/14T/16T 1pc Aluminum Alloy
Pulley Wheel 14T 15T 16T Guide Wheel Rear Derailleur Bearing Guide Roller
NEW~Cycling Tension Rear Derailleur Bike Guide Roller Parts 14T
For Sram Compatible 12T Rear Derailleur Pulley Guide Wheel in Multiple Colors
Wsdsgz Folding Bike Chain Tensioner Bicycles Rear Derailleur Chain Guide Rear Derailleur Chain Stretch Guide Stabilizer
