I meant to add that. They are flat karts.Champ or flat?
Thank you all for your reply. I will be changing some caster setting on the karts. I don't care of they are factory numbers, I just want someone else opinion on what to run that has been successful.I can't confirm 100 % there factory recommended, but I can say from experience helped tune 4 different Epic that dominated with 7 & 10 as the caster settings.