why do you need to see pics? and why are you unable to search? ayway. ashton mods have them, and lots of stocks in the bike pics section, including my one.
in my oppinion. go for zona. i'v ridden the cls python and the yaow(sp) zhi one. and the zona rides way way nicer. its more livley, feels way more fun and flicky.
ARRGGGG TAAAAARRRDDSS it will engage JUST AS FAST on the rear. BUT!!!! it will FEEL faster because of the advantage you have through gearing. if you can run it on the rear instead of the front, do so, because it will work better.