Quote:

"...stock Tiger rearwheel from the first 900 series..."

bolt on and be done? fatter rim?



Not fatter, possibly better handling characteristics, though. If you want a fat rear, you need a America hub and lace up to a 5.5" rim to it. I would suggest not going wider than a 190mm tire, as 200mm s are the limit without chain interference. Be prepared to spend $225 to 350, quality fat tires aren't cheap.