NEW Shimano Ultegra CN-6701 10-Speed Chain rearder_7speed Smart head fits on both

Smart head fits on both Presta and Schrader valves

Sit-bone GEL pads relieve pressure from soft tissue

High security pick and drill resistant disc-style cylinder

Dimensions: 11 x 11"

this model is not compatible with Centerlock or HSX rotors

NEW Shimano Ultegra CN-6701 10-Speed Chain rearder_7speed Smart head fits on bothShimano CN 6701 10 Speed Chains For Ultegra 6703 and 105 5703 triple drivetrains, please see 10 Speed Hyperglide non directional chains Hyperglide 10 Speed chain Directional inner & outer plates designed for better contact with gear teeth allow smooth shifting even under high load conditions Chromized rivet pins improve wear resistance Perforated plates for reduced weight Zinc alloy plated outer link surface treatment