On the 08 Busa we prefer the 330 as it is a 17" diameter wheel so the tire profile is smaller. The 08-up busas have the tail coming back down which limits tail-tire clearance. The 300 tire while being an 18" tire does have a rounder profile and will allow the bike to turn better than the 330. The 300 will require keeping the rear end of the bike higher for clearance. This will also improve cornering as the higher the rear end sits the quicker the bike will steer. It is best to call us and talk through excatly what you are looking to accomplish so we can steer you to the best set up for your application. We work very hard to make quality parts that ride well.
We have great set ups for wide tire conversions that will allow for the best handling fat tire bikes available. There are many combinations to work through to accomplish the best ride. This includes wheel/tire size, swingarm legth, shock and suspension set up, motorcycle geometry. There are a lot of people out there making fat tire parts but not a lot with the experience to provide a great riding safe motorcycle. Let us help you make your bike look great while retaining as much performance and safty as possible!