thought I might bring up this thread again. from my experiences.
I my self have a rovan lt, that was generously given to me to race thanks to-
www.pprc.net.au
this was bought second hand, but was new. the owner used it for parts (more little bits)
the truck was rebuilt and re oiled, just for the heck of it because I was going got thrash it around the track.
mine had a 27.5 4 bolt engine in originally. first impressions when i took it for its first race was WOW!
ive had experiences with rovan clones before and there not the best compared to my race comp 2wd hpi which is now retired.
the first race I didnt break anything at all the only issues i had was the servos sucking heaps of juice in the first heat. the nihm held up.
until we had a two hour enduro. i drove for a full hour! a full hour on a clone and didn't have one issue but the battery going flat and killswitch glitching out (killer bee).... other then that we placed 7th only because my team mate didn't pull his socks up and didn't have his rovan ready but over all i completed 70 laps. i was very impressed and i was pushing this car hard.. like really hard... to see what it could do. over all i've only had engine issues now and i've now got a 29cc zen. reliable and good quality everything else has held up besides my own fault coming over the jump wrong and bending a pin (which are now losi) besides that its stock and i haven't had a issue. with quality. the diffs have held up nicely and haven't had a issue yet i might do a complete diff rebuild with oil and seals before the nationals. but so far no complaints. i recommend a clone if your on a budget, and replace with losi parts as you go.