Oversized pulley system for Shimano 10/11v Dura-Ace and Ultegra derailleurs.
With 2 specific narrow-wide 14+16 tooth pulley wheels.
Offers savings in transmission friction.
Compatible with the following changes:
Shimano Dura-Ace 10 speed RD-7900-SS
Shimano Dura-Ace Di2 10s RD-7970-SS
Shimano Dura-Ace 11s RD-9000-SS
Shimano Ultegra Di2 10v RD-6770-SS
Shimano Ultegra 11s RD-6800-SS
Shimano Ultegra Di2 11s RD-6870-SS
KCROSYSUSNGUNVA
2 Items
Specific References
- ean13
- 4710751026056