I've got a set of these tires I need to get rid of as I'm moving. They're a few years old, but still plenty sticky. They've still got visible tread, I think I only ran them once.
http://rcscience.com/sale/IMG_0003.jpg
http://rcscience.com/sale/IMG_0004.jpg
http://rcscience.com/sale/IMG_0004.jpg
Call or TXT John @ 2.1.4.-5.3.2.-7.6.4.2.