found this chain length calculator.. now how to use it!

this one is download:

http://www.machinehead-software.co.uk/b ... lator.html

this one is useable on the site:

http://www.scootersperformance.com/tool ... _calc.html

i have a 15t 44t rear sprocket set up. i am wondering if anyone can use these calculators to help me work out how many links i will need on my chain for these sprockets on an st70 with 50cc engine.

also, what chains do you prefer? i might end up getting a larger tkr chain splitting it and keeping the rest of it for another chain? ps where are tkr/triple s chains made?

thanks.

You only need to fill in the first line.
Number of teeth front sprocket
Number of teeth rear sprocket
Distance between center front sprocket and center of rear sprocket.
Number of links needed can be read off at the right.
I wouldn't rely on it for 100%, but should give you a very good indication.

Iris, DID,... all common makes make good chains.
(And they don't have to withstand 100bhp in this case...)

Pssst: just saw a lot of different and well priced D.I.D. chains on ebay.de for monkeybikes.
(searh for honda dax)

cheers waynus, got a DID and that makes sense. getting there, when i have some time to sort it out! i can't see where the plug goes in, i will have to take the plug out and crank it and check the spark next.......