I was running a 17.5 motor with a 7.2 2s lipo the tires and wheels are new old stock that I had, I Have tons of old 1/12 stuff new and used, still mount and tru up tires for the old cars because they dont make the 2 bolt rear rims any more. you can use the new 3 bolt stuff on the newer L pod cars by usingt the new 3 bolt hubs. But for the older cars without the diff side spacer I have had to use old 2 bolt wheels and tru up my own tires. When I ran this car we were running on an outside asphalt track, the car with the right tires on it could keep up with the newer cars, but with the 2s battery it was like running 6-cell mod back int eh day but with out worring about the runtime