Ok I'm trying to figure out what size sprokets I should put on my cart and I'mnot understanding formula for ratio. My kart weighs roughly 150 pounds, rider weight is 170, tire size is 14.5, I'm putting a 8hp Briggs &Stratton engine that has a wet clutch system geared 6:1. What sprokets should I use I'llmainly be riding in pastures and muddy ttrails. I'm lost never realized this much went into karts but its fun and I'm learning any help will be appreciated