I don't see a problem with leaving the bosses be if you decide to " fix it". You are too tall for it. It appears to be a 21", a size fora 5'8",9 or 10" at the most. You would need at least a 23"(57-9cm). As I'd stated, $20 ... zero risk. Leave the bike whole; clean it up and sell it in the spring if not sooner, spring's best. Exage was plain jane stuff but it worked OK. It's index which along with all else makes it a potentially hundredfifty dollar bike, easy. I suppose I should think that it depends on how hot your fixie market is. Or overall bike market.