do they run classes? Turin in E-town used to (still does on occasion). I'd prefer to be shown than dish out the cash. I have my new track bike parts all ready to go (cept the frame) so I can have a new sled for next spring. I will either try myself and if that fails, Marcus @ Yojimbo's will be doing the honors. Thanks for the heads up on J Sprockets though...always good to hear!