The swissstop full flashpro yellow king brake blocks provide unbeatable braking in both wet and dry conditions designed to not damage your carbon rims the blocks offer silent operation providing consistent braking from 20c to 40c they give fantastic power and precise modulation lm features swissstop full flashpro yellow king brake blocks provide unbeatable braking in all conditions wont damage your rims compatible with carbon rims consistent braking from 20c to 40c fantas