im moving in the spring, across the country though and can only take one.. if the 450 is close to me, its a barn find, complete, and no rust on it... i would keep one to strip down and rebuild from the frame up, and the other one i would just get to riding condition, wait until spring when theyre more valuable and sell it
its just hard to ignore this 450 being in nearly mint condition, pulled from someones barn, and not running because its been sitting for 15-20 years, most likely due to the carburetors not being drained first... it turns over, has the complete electrical system, both brakes, all turn signals, seat, tank
the 550 i have has no seat, no tank, no turn signals, no front brake and needs all new wiring, but i only paid $300 for this one, with another $200-$300 into it i can have it running and road worthy.. so for the same price put into either one for the initial cost of the bike and getting it ready, i could have either one ready to sell in the spring before i move
whats the "better" bike, and i quote better because its obviously a question thatll receive an objective, opinionated response... but what will give me fewer mechanical problems in the future? and which one is in more danger of becoming rare?.. keep in mind the 550 is in fact the super sport model