FEATURES:

Cnc machined cage plates.

15T upper and lower pulley wheels 

NanoTec Performance Bearings

Cryogenically treated bearing races ensures

Unrivalled reliability and performance.

NANOTEC SUBSTRATE TREATMENT MEANS THE  LUBE IS BUILT IN.. GIVING TWICE THE PERFORMANCE OF ANY STANDARD CERAMIC BEARING WITHOUT THE NEED ( OR MINIMAL) LUBE

All units hand assembled in the UK.

2 year warranty*