Shimano Altus RD-M310 Rear Derailleur - 78 Speed Long Cage Silver CheckoutTitle=Squirt Chain Lube Model Hydra2 Front/Rear Rear (XD)

Model Hydra2 Front/Rear Rear (XD) Axle/Spacing (mm) 12x148 Hole 32 Spoke J-Bend Brake 6-Bolt Color Orange Weight 292g

Motion-sensing auto revert-to-transmit mode (AR)

}Park Tool SW-15C Three Way Internal Nipple Wrench

Easy to install

Shimano Altus RD-M310 Rear Derailleur - 78 Speed Long Cage Silver CheckoutTitle=Squirt Chain Lube Model Hydra2 Front/Rear Rear (XD)The Shimano RDM310 Smart rear derailleur has a Wide Link design for increased rigidity and precise shifting. Oversized 15 tooth tensioner and 13 tooth guide pulleys reduce noise and wear SMART CAGE pulley plate provides more ground clearance Advanced light action with precise shifting Compatible with Shimano HG 6 7 8 speed chains Largest Cog 34 Color Silver Rear Der Shifter Compatibility Shimano Mountain Rear Derailleur Mount Type 10x1 Standard