Do all 98 WR400s rear brakes stink???? Actually i had a wr426 and those brakes were no better either! Can i put newer yz450 calipers on this bike. I hate to say it but i rode ktms for the last ten years and im definetly happier with the yamaha's but one thing that did spoil me with the ktms is the stock brakes on the later models are superb. And im used to them now. I think i could stop better Fred Flintstone style with my feet than these stock wr rear brakes!!!!! So what can i do to make these brakes work?????? I have very good pedal it just feels like a 1965 brake. Ive rode Xr's with drums that stopped better than this!!!!! Actually alot better! What parts interchange for an upgrade?