I don't think it is necessarily just any pound unsprung weight that equates to about a 7 pound difference...it has to be rotating. However, in the case of a dirtbike, the majority of the unsprung weight is in the wheels (I'm not sure if the swingarm and forks are considered sprung or unsprung)...
Looking forward to finding these in the mail...everything looks awesome!
The t-shirts are bad ass. I wish I would have signed up for one of those but looks like I'll just have to buy one once you get up and running!
Thanks again.