The tire is A Bridgestone 150 / 70ZR / 17MC
as far as installation, i went to a local motorcycle shop and had them install it for me. At first they told me that it wouldn't fit, but i insisted that they install it anyway, because it knew it would fit. Anyway this mod is VERY COOL but, The guy that installed this tire for me brought up a good point, i am not a very big guy, 5,5 135lbs the tire clearance is not much at all and if you are a bigger guy the tire will flex while cornering, causing it to rub on the swing-arm. in my case because I'm so small it is no problem at all. The ride is sweet! much better balance. If you are looking to go bigger on the tire and still want a good tire clearance it would suggest a 140 tire. The 150 tire fits with no modification at all just in case your wondering.