Shimano Ultegra R55C4 Brake Pads (BR-5810) Dura-Ace-Ultegra-105 Pads (R55C + 1) - Shimano Always use Shimano pads to hold the power and durability of the Shimano Brake System. Shimnano skates offer the right level of hardness for high braking power combined with an excellent level of control. Suitable for Standard brake calipers and Cantilever brakes. For use with aluminum rims. The R55C + 1 compound is made from soft material that offers superior braking performance in dry conditions. The pad is 1mm thicker than standard pads. Its properties reduce rim abrasion but increase pad abrasion in wet conditions. Features: Compatible with the following Shimano Models: BR-9000 BR-7900 BR-7800 BR-7700 BR-6800 BR-6700 BR-6600 BR-6500 BR-5800 BR-5700 BR-5600 BR-5501 BR-5500 BR- R650 BR-R600 BR-R561 BR-R560 BR-CX70