13T pulleys and decreased derailleur tension prevent high chain tension in low gears. Durable 13T bearing pulleys for low friction. 12 Speed Rear Derailleur. Bearing Pulleys: 13T pulleys. Decreased rear derailleur and chain tension in low gear.
Shimano XTR Rear Derailleur 9 Speed Mech Mountain Bike Long Cage Retro
RiToEasysports Bicycle Rear Derailleur Guard, Bicycle Rear Derailleur Chain Protective Guard Mountain Bike Rear Derailleur Guard Rack Protector Outdoor Cycling Accessories
SHIMANO,Black,ERDM3100SGS Alivio Alivio M3100 rear derailleur, 9-speed, Shadow design, SGS long cage
SHIMANOSHIMANO,Black,ERDM3100SGS Alivio Alivio M3100 rear derailleur, 9-speed, Shadow design, SGS long cage & KMC Unisex's X9 Chain, Grey, 114 LinkKMC
Shimano RD-M3100 Alivio Rear Derailleur 9-speed Shadow Design SGS Long Cage - one size
Dymoece Round Chainring 104BCD 32T 34T 36T 38T Narrow Wide Single Chainring for 8 9 10 11 12 Speed MTB Mountain Bike Road Bike BMX
