I'd agree with the others, if the seat post is maxed out then it's probably too small. Tempos are great bikes and very underrated. If you plan on flipping it, be careful on the amount of money you spend. If all bearings are serviced, cables replaced and it's gleaming clean i'd estimate it would sell in the $200 - $250 range. The tires are the expensive part, so you are fortunate there. Good luck!