The Turbine technology of these S series rings is specifically designed to work interchangeably with your Shimano® rings on Shimano cranks. Use any Turbine S ring in place of an existing Shimano ring for better performance. They're three times stiffer than previous Team chainrings (yet no heavier overall). Add sharper, quicker, more responsive shifting and get greater impact resistance.
- Asymmetrical tooth profile and more upshift and downshift zones yield instantaneous smooth and quiet shifting, even under load.
- For use with 2008 and later Shimano XTR, XT and SLX cranks and rings.
- Ring sizes and BCD are 22T (64mm), 32T (104mm), and 44T (104mm).
Bolt circle diameter
Bolt circle diameter (BCD): the diameter of an imaginary circle that intersects the centre of each chainring bolt.