Features

• Shimano Index System:¬†The system constituents such as the index mechanism built in the shifting lever, the frictionless SIS rear index shifting cable and the smooth action rear derailleur realize the SHIMANO INDEX SYSTEM.

• Double Servo:¬†SHIMANO‚Äôs double servo-panta mechanism enables the rear derailleur to move in an optimum path.
  The guide pulley tracks the cogs closely while moving front to back, optimizing each shift. Perfect tracking contributes to the most accurate SIS shifting. Keeps rear derailleur guide pulley an optimum distance from each sprocket.

Specifications

• Compatible with: 6/7/8 speeds
• Max Rear Sprocket: 34T
• Min Rear Sprocket : 11T
• Cage Length Long
• Weight: 315g