Quote:
Originally Posted by rmbbikes  Sreet riders have no bid-ness going to a 520 kit.
KB |
Why's That? I have an 04 f4i that pertty much couldnt get out of its own way before switching to a 520 kit. Went up 2 in the rear and down one in the front. Lost a ton of top end though, but I'm not one of those people that gets on the highway twists the wrist and hangs on. I don't really miss the 15 to 20 mph I lost on the top though. Before switching the bike actually went faster in 5th. just not enough power to red line in 6th with the factory gearing. The narrower chain and aluminum sprockets = less unsprung weight and does make a noticable difference in acceleration along with the gearing obviously. If you change one change everything. The 2 sprockets and chain wear together if you put one new sprocket in with a worn one and a slightly stretched/worn chain it wont line up correctly and the teeth will bind with the chain. Accelerating the wear.