do you mean these rims?
http://mini-zracer.com/forums/attach...achmentid=4439
http://mini-zracer.com/forums/attach...achmentid=4440
from the thread...
http://mini-zracer.com/forums/showth...original+teile
if i remember it right they are square inch up 6 spoke rims... they are 1mm wider in diameter (compared to the stock 20mm)... also the offset is for wide mr01/mr015 bodies... so i think 2.5mm in front and 0 in the rear... front width is n-8.5mm and rear is w-11mm...
hope this helps...