I was thinking about putting a 24x10x11 Kenda Bear Claws on the rear and dropping down to a 13t sproket. Was wondering if they a gonna have a clearance issue and if anyone else has tried anything like this.
The greater the weight of the tire or "unsprung weight" the more power-sapping it is. If you got taller tires it would be (as you already said) better to drop it down a tooth for the front sprocket. Well, that is unless you want some ridiculous top speed.