On page 109 of dirt wheels "Hot or not ". Bottom left of page it says "Look for Suzuki to upgrade the Z-400 in to a full fledged 450 sometime this summer". That would be great to have all the manufactures with a 450. You wouldn't have to spend more money for a big bore kit.

 

ya i heard that... they are coming out with a 450 dirtbike.. so they assume it will be in a quad... i dont now about this summer tho.. maybe.