I also fabricated a overflow bottle - easy to do - and added a kickstand to my yzf. I don't really have to clutch mine very much and this is in the east Texas national forest, some pretty tight stuff. I usually run in 1st to 4th gear. Ratios don't seem to be a problem. Not really trying to talk you into a yzf but it works great for me. You need to go riding with someone who has one and swap bikes for a while and check it out for yourself. Overheating is not a problem unless your just going really slow in first-no airflow-. Hope this helps.