I've just bent the hell out of my stock bars (99 WR400F). Looking to replace them. Not sure about what to look for. I used to have a set of Renthal's on a XR. Liked'em O.K. Don't know if I need to order bars specifically for my bike (i.e., are throttle diameters all universal, will the bars I order fit my stock clamps) Obviously, if I order fat bars, I will need new clamps. 1st time purchasing bars, not sure what to do. Can I be confident walking into my local shop and picking out whatever bars they have in stock?