[Chequered Flag Racing]

Originally Posted by LEGEND

I am thinking about doing the 1/12th scale national up at Jarrow in november but then i realised, i have just about completely forgotten everything about setting it up to what tyres i need. So all help would be appreciated. but what i really need to know is how would i work out the ratio for pinion size as i have completely forgotten, will probably have a brand new set of fronts and rears.

roll out charts