ok guys.....after weekend of testing my conc are like that......the 21tm has a very low power and little less in end power.....but!!!. most of us dont run the jato for miles and miles ......after alot of testing in several tires and gears her is my thinking.....best setup for me......front tires proline roadrage 2.2 rear tires .....belive it or not.....bowtie m3 30series amazing grip!!!!!!!!! spur gear 53 clutchbell 22!!!.......or if you dont have very grippy onroad truck 53/24 will be just fine......in 56/24 no wheelies almost at all but the grip of the tires (rear ones) are amazing! but they run out very fast!!!! i buy now a 20 pairs.....the angine like the 220-230f tops!!!!! more then that he just stop preform........if you use this car for on road use revo springs on 50k oil......akso the diff is 50k oil .....the car accelerate fu***ing amazing the top speed probebly will go down to 60+- but who cares!!!.....with this setup she never ever even ones flip over!!!! (and i realy try guys) just nothing!!!!.......amazing amazing amazing......video soon.