I need to replace the chain and sprocket on my 2001 F4i, and I was wondering if anyone had any chain and sprocket kit suggestions, or brand suggestions, or even a good parts website other than dennis kirk (since their site doesn't even work anymore for some reason). I'd like to stay with the stock teeth count, so any suggestions would be awesome, thanks!

 

http://www.kiernanracing.com/ their site can be painfully slow at times, but they got good stuff.

 

awesome thanks man . . . do you know how my top speed would be affected if I went one tooth down in the front?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slylos &raquo;</TD></TR><TR><TD CLASS="quote">awesome thanks man . . . do you know how my top speed would be affected if I went one tooth down in the front?</TD></TR></TABLE>

Down one tooth in the front = Faster acceleration = Less top-end

I don't know exactly how many MPH, but I think it's inconsequential. You spend more time accelerating than running at top-speed.

 

one tooth down in the front won't lose much top end. one tooth down in the front and say maybe two teeth up in the rear will give you mad speed in the low end, but will cut your top end a bit more. I'm thinking about doing the -1,+2 conversion soon too.

 

down one up front will be anywhere from 4-9 mph lost top speed. ronayers.com

 

Going down on front teeth makes more of a change than going up teeth in the rear... plus the rear is much easier to change. If I were you, I'd just stick with factory replacements if they need it, if you want an aftermarket change, say for your wheelies, then go from there.