Your best bet is to contact K2 directly at www.k2bikes.com and go to the 'support' section and ask the tech's this question. In the past they have gotten back to me within 24 hours with similar questions.ZonaWLDcat_17 said:I have a '99 Razorback HT frame, but I'm not sure what size of seat post it takes? Any one riding on one?
I've never had to size a seat tube before and I'm not exactly sure how this works. Does a seat post size need to be exact in size?