Shimano ZEE RD-M640 Rear DerailleursShimano's stabalizing Shadow RD+ clutch technology is proven to reduce chain slap and noise
| Largest Cog | 36 |
| Color | Gray |
| Rear Der/Shifter Compatibility | Shimano Mountain |
| Rear Derailleur Mount Type | Shimano Rear Direct Mount |
| Drivetrain Speeds | 10 |
| Weight | 250 |
| Chain Wrap Capacity (teeth) | 25 |
| Cage Length | Short |
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