Swissstop flash evo brake padsswissstop offers the best braking performance in all conditions for all types of bike top performance on dry rims and even better performance on wet complete absence of abrasive materials which damage rims consistent braking 20c to 40c and silent operation bxp features high performance compound for alloy wheels improved power and modulation with excellent wet weather stopping power fits sram shim road rim aluminumblack prince featuresexcellent modula