84 250r sprocket sizes.18 inch tyres

[skdmrx]

Hi
I bought my 84 250r about a year ago in bags.Ive slowely been plodding away at it and finally took it out in the weekend.Trike went well down low but the main jet is way to big so that needs looking at.
Anyway its running 18inch tyres and I'm just wanting to know what size sprockets people are running to get me an idea of where to start.I wont be doing much dune riding,it will mainly be trails and the odd flat track race.

so what size are you guys running?

http://i244.photobucket.com/albums/gg29/skidmrx/IMG_0875.jpg

[3or4wheels]

I just finished my 83 and I also am running 18 inch rears with 14/38 combo, with which it should be geared for 65 mph.
Standard gearing of 13/42 gives a top spead of nearly 67.
I stuggled to find a 38 rear sprocket and the only place I found have them are PBI Sprockets,great fast service also.