This bike has Dt Swiss hubs with their famous star ratchet drive system, but they mainly equip their wheels with an 18 tooth star ratchet. However, you can get upgraded star ratchets that feature 54 points of engagement! They are only around $100, and can be a a great upgrade to some already great wheels. We also threw on some fresh tires and grips, along with a drivetrain clean and tune up to get the sweet bike ready for the trails!