Have a look at Associateds web site , manuals, B4.2, lists recommended gearing
Also on the site is a good guide to understanding gearing !
http://www.teamassociated.com/pdf/ca...ual_B4.2RS.pdf
Same gearing in the B4.2 as the C4.1... 2.6 final drive..
If you play about on the Team Associated web site, there is lots of info on spring settings , camber, as well as gearing....very useful stuff
You can also look on CML Distribution site for set ups used by Neil Cragg, Bradders , etc..
Hope this helps... Gearing and suspension settings were always a black art to me before I found these...
Hope this helps ..