just be carefull rolland with the 14/18 and tmaxx wheels - it has a veracious appetite for standard cen clutches! and thats with a 47t spur. i had 2nd locked out... 1st was scary enough when the clutch actually grabbed - which was rare and short lived - ie 3-4 tanks per clutch!!!

u may be able to find lighter tyres that would help tho - but to give u an idea of the weight issue:
my imex romulins with ofna brick pins incl foams weigh in at 300g each, whereas my cen rally wheels and shumacher cut pins weigh 75g each!! kinda explains the speed of my rally... so that works out as 4 rally wheels n tyres are the same as just 1 tmaxx wheel n tyre!

apols, i have no cen mt wheels to weigh...