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. Swissstop offers the best braking performance in all conditions for all types of bike. Compounds 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.. Why SwissStop? 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. Supplied as 2 pairs (4 pads).