Fits:
Shimano ultegra 6800/7900/68XX series DI2 & MECHANICAL

Shimano dura ace 9000/90xx series DI2 & MECHANICAL

FEATURES:

Cnc machined cage plates.

11T +15T pulley wheels 

Stainless Performance Bearings

Cryogenically treated bearing races ensures

Unrivalled reliability and performance.

All units hand assembled in the UK.

2 year warranty*