Pinion Calculation.
 

Hi Guys,
can anyone tell me how you calculate what pinion to use.
i have a losi xx4 and a losi xxx 2wd
in the xx4 i have a 6.5 brushless lrp system on a 88 spur gear
and in the xxx i have a 19t with a standard spur(not sure how many teeth) but am going to change the motor in that so need to know how to calculate what pinion.
thanks for any help
Mark

hi mark there a piece of soft ware called
ratio software from a very nice man lol
it has all the onroad and offroad cars on if i remember rightly
i have a link though its the free version you can get the full version from a link on the software it real good and not dear for the full version
http://www.hobbytec.co.uk/index.php?...on_view&idev=4
sorry for the link in advance jimmy

Thanks for that i will give it ago.

Hi Markko.

Try this.

Save as....change file extension to .xls

Spreadsheet ahoy

cheers adam. this mite sound daft but what does the information tell me? how do i know what pinion to use from it?
cheers
Mark

Mark PM me your email address and I will send you a complete gear ratio chart for the XX4 and XXXcr

Email sent Mark