Coustsinks. £19, and worth every penny. I've had mine on for about 2 months now, only worn a few mill, to the shape of my rim (hog - which have curved sidewalls). Work straight out of the packet. Whack em, on a new grind (doesnt have to be sharp/deeeeep). Majic pads are poor. Me mate has some and they dont hold, dont even make a loud, or trust worthy sound. Plazmatic CRM are good pads, more bite than Coustsinks, but when water touches them, your f*cked. Dont work in the wet. Cousts do!!! www.heatsinkbikes.com Not being biased, because the blue pads dont work in the rear, and i think they are pants. But SICK good in the front, for some strange reason