Flash Pro pads to fit Shimano Dura Ace/ Ultegra/105/Sram/TRPSwissstop offers the best braking performance in all conditions for all types of bike. Four different compounds are available for optimised braking control choose the compound that suits your applicationCompoundsPower Black - Suitable for less aggressive riding, very good in dry & wet conditions. Specifically recommended for rims made of softer alloyGHP II - High performance compund for aluminium rims. Excellent in the dry adn unbeatable in the rain. Extremely low pad and rim wearYellow King - Awesome power (wet & dry) and precise modulation on carbon rims. No squeaking and very little wear to the rim. Also good for alloy rims.All SwissStop pads offer:Top performance on dry rims and even better performance on wetComplete absence of abrasive materials which damage rimsConsistent braking (-20C to +40C)Silent operation.