Hayes Disc Brake has set a new standard for hydraulic bike disc brakes worldwide. Hayes’ sole focus is to develop products that outperform in your application and outdo your expectations. Hayes has been around for decades, surpassing industry standards and setting the curve in performance.
Buy Hayes Service Master Cylinder Cap - Prime Pro from Chain Reaction Cycles, the World’s Largest Online Bike Store.
If you're not completely satisfied with an item you may return it within 12 months of purchase. We'll give you a full refund if the item hasn't been used or the component hasn’t been fitted.More information on returns