Ever wonder why sport quads have normal sized front tires but the backs seem to have been shrunken down to toy-like proportions? One of our readers wondered the same and we have your hook up. Hint- it's not just a style thing.

Ask the Editors: Why Are The Back Tires on Performance Quads So Little? | ATVConnection.com

 

It lowers the center of gravity.

 

Also smaller wheels are lighter and need less power to turn so it increases acceration.

Put heavier 25" tires on the rear drive wheels and it would accelerate like a dog.

The front dead roll wheels have no power going to them and can be taller to help roll over bumps and dips and since they are so narrow not much weight is gained.