About Brakes - Disc Rotors

Brake disc rotors are available in many sizes and fitments. Wiggle stock a range from 140mm up to the largest which are 203mm. Fitment varies from IS (International Standard) 6 bolt to Shimano's new Centre Lock splined type. Wiggle also hold some of the older rotors made by Hope and used by Cannondale, such as the 4 bolt Coda and 5 bolt systems. It's common for rotors to be different sizes from front to rear, with the front usually having a rotor one size up from the rear for brake bias balance, 185/165mm for example. This is because when braking, your weight shifts to the front of the bike and as much as 75% of the braking is on the front, with the rear used for control.