Shimano - ZEE RD-M640-SS Rear Derailleur 10 speed
The Shimano ZEE RD-M640 is a 10-speed rear derailleur for Freeride and Downhill use, which is aimed more at Gravity beginners than the Saint. The ground-breaking Shadow+ technology with stabiliser counteracts chain knocks and chain drops. The ZEE rear derailleur is available in two versions, the DH version for a maximum of 28 teeth on the largest sprocket and the FR version for 36 teeth.
Specifications:
- Series: ZEE M640
- Application: Freeride, Downhill
- Gearing: 10-speed
- Mount: standard (Direct Mount compatible)
- Capacity: 25 teeth
- Compatibility: Shimano MTB / City & Touring 10-speed
- Compatibility - Chains: HG-X 10-speed
Technical Information:
- Derailleur Pulleys: 11 tooth
- Outer Cage Material: aluminium
- Inner Cage Material: aluminium
- Other Materials: steel, stainless steel, aluminium
Features:
- - available in two gradation-specific versions 11-28 or 11-36
- - quieter drivetrain
- - rear derailleur stabiliser
- - lightweight and simple solution to prevent the chain dropping
- - less chain sag
- - 3 joint bushings, fluorine-coated
- - painted cage plates
Technology:
Shadow RD+
Less distraction, quiet drivetrain. Rear derailleur stabilizer, reduces chain slap. Simple solution for chain drop. Lighter and more efficient than roller type chain device.
Models:
short / 11-28:
- Cage Length: SS
- Largest Sprocket Teeth (max.): 28 teeth (= DH version)
- Largest Sprocket Teeth (min.): 23 teeth
- Smallest Sprocket Teeth (max.): 12 teeth
- Smallest Sprocket Teeth (min.): 11 teeth
- Max. Chainring Difference: single
- Total Capacity: 25 teeth
- Manufacturer Part Number: I-RDM640SSC
short / 11-36:
- Cage Length: SS
- Largest Sprocket Teeth (max.): 36 teeth (= Freeride version)
- Largest Sprocket Teeth (min.): 23 teeth
- Smallest Sprocket Teeth (max.): 12 teeth
- Smallest Sprocket Teeth (min.): 11 teeth
- Max. Chainring Difference: single
- Total Capacity: 25 teeth
- Manufacturer Part Number: I-RDM640SSW