SwissStop’s replacement pads are the choice of pro riders. The RacePro pad model fits Campagnolo 1011 and Zero Gravity holders and is available in three different rubber compounds. This version features the King Yellow high performance compound for carbon rims. The King compound provides excellent stopping power in and wet and dry conditions with superior modulation and low pad wear rate. Not designed for use with aluminum rims. Sold in sets of four pads enough to retrofit a front and rear brake.