Thank you but the biggest issue I have on the nidoor track is the surface/tyre relation . It's 80% of the car efficiency and it's just horrible not matter what with a 2wd ... I've tried slick tyre , mini pins , mini spikes , foam , smaller wheels ... the least worse was the mini pins as espected , the rear hold down very well but I have absolutely no grip on the front what so ever above 5mph. I've put weights at the front no difference either ...
Tried many different angles for front toe out 0 -> 2 degree out , front camber from 0->4degree rear the same etc etc it's just hopeless .
I've got a big garden I will make a little track in the woods ... (grass/dirt surface with many bumps) and run the rb5 there
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The fz5 fs would be more for the indoor track but also that track ... 2hours a week for the club is just not enough for a beginner willing to test settings and discover differences .
Unfortunaly for the kyosho zx 5 fs the x11 from xtreme team just looks so much exotic and sturdy and all ... also the videos on youtube it looks so agile in cornering and stable in straights . the guys on these videos are really pro as well I think ...but really each corner it took 1ft off the other cars ...