Swissstop offers the best braking performance in all conditions for all types of bike. Two different compounds are available for optimised braking control choose the compound that suits your application. A lower profile pad for wide rims or reduced pad to rim clearance. For Dura Ace/Ultegra/105/SRAM/TRP when used with wide rims. Features: Top performance on dry rims and even better performance on wet Complete absence of abrasive materials which damage rims Consistent braking (-20C to +40C) Silent operation Materials: Black Prince - Latest carbon rim compound, provides superior power, control and modulation. Braking distances are significantly reduced in all conditions. Compatible with carbon rims only. BXP - Latest aluminium rim compound. Non sticky predictible linear feel provides improved modulation, power and braking in all conditions.