When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I rode with my friends 400i's this weekend and they are always one gear bellow me. I would cry if I had that kind of power. If you want big tires go with the 500i, if you want to putt around with stockers get the 400i.