Shimano Altus RD-M310 Rear Derailleur - 78 Speed Long Cage Silver ModelNumber=MPDW15 Three rubber bases included: two

Three rubber bases included: two types of cones (one installed)

Enough space for extra rain jacket

} Automated Intensity mode

5 CTF-R 21

Freehub Body Shimano HG 11 Rim Drilling 24 Hub Spacing 142mm Rim Model SES 7

Shimano Altus RD-M310 Rear Derailleur - 78 Speed Long Cage Silver ModelNumber=MPDW15 Three rubber bases included: twoThe 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