are you sure its a smarttech?
if so how do i order replacements?
also there are 2 things that i am not sure of...
one is i dont know if the gearbox was even greased. i know *I* didnt put any in so that might have caused it
also i did run it on grass for a good 20 mins right after breaking it in.. doing figure 8's.

imma see if i can get ahold of smarttech.

update-**
how the hell can i get ahold of them? cant find a number anywhere...