can any one work out what my top speed could be. mc18 r5k standard front sprocket , 38 rear! wire splice, air box mod so it pulls to the red line in top??
cheers in advance
dunk

jamies nsr site has a list of sprocket sizes and theoretical kph speeds at 10000 rpm. Its listed for mc21's and seperatly for mc28's.
May be of some use.
If you dont know his site you'll find it on here under links.

Google gearing calculator.
You'll find an excel spreadsheet that you can enter all your details into. i.e. ratios, final drive, tyre sizes and rpm.

That will allow you to calculate it as close as possible.