You need to run as close to 50% cross and 50% left side weight as possible. The fastest tires for sprint are Vega Yellow. I think they sell 4.50x6 for fronts and 6.50x6 for rears. I think TSracing.com has some. Not sure who else. That might be a good starting point
Sounds good thank you
Alvin you couldn't be more wrong on many statements you just made.
I just can’t see an LTO kart ever competing with a purpose built sprint frame. Not against top competition. Maybe on a local basis?
Rear width needs to be out to something like 50”, maybe more, and square to the front. Are your spindles long enough? Good sprint karts hang those wheels way out there. The rear tread width has to be wider than the front, in almost all cases.
The caster should be the same, left and right. Little to no camber.
Front to back weight is a thing you have to test for. Tried and true guesstimate would be F45% - R55%
Getting matching weights on the front tires may be a challenge. Maybe even harder on the rear.
As far as tracks having more lefts than rights, it depends on the direction they run at your track. Some run clock-wise and a track like that would have more Right hand turns.
With LS 50% & C 50% the left side is the same weight as the right side. Side to side, front to rear.
Comments, compliments, criticisms and questions always welcome.