Quote Originally Posted by Becky View Post
Nevs are definitely a slow tire (but they grip everything!!), so I wouldn't discount that.
http://www.kendausa.com/en/home/bicy...n/nevegal.aspx

There are lots of Nevs, some very heavy (read: lots of ruber to flex and eat up your energy). I'm with Becky: try known-good tires before getting rid of the bike.