Parts will be no problem. Aftermarket is pretty small, but you can get even larger fuel tanks without issue and the bike is very solid and reliable. Generic items like chain sprockets, bars, levers etc all available aftermarket - just bike specific stuff will be somewhat limited. Its a fine bike by all accounts, just depends on what you are after. The newer one is physically smaller, smoother, a bit lighter (I think) and has e-start. The previous one IIRC had more low-mid power and had a larger fuel tank and (except for the aqualine) the aftermarket tanks available are larger for the older model as well.