I'm not sure how many of you guys get Cycle World, but for those of you who don't. I'm sure you'll find this interesting. Cycle World compared the accuracy of the tachometers of the 600rr, zx-6r, gsxr6,r6, and the triump 675. They tested each one at indicated 5000, 10000, and max rpms. the kawa, had about 6.5% until redline and was off about 8.5% there. The gsxr had 6.5% all the way; the triumph had error increasing from 6.5% to 9.5% at peak, and the yamaha jumped from 2% error to 11.5% error at peak. The 600rr was dead nuts on its indicated vs real rpms throughout the entire band, even at peak. I don't know how reputable a measurement machine a Dynoject model 150 RW dyno is, but I still like the fact that the RR did the best.