Re: It didn't rain today,in my part of england,so..
The bike itself is a usual chain. The motor drive is a belt to a sheave on the back wheel.
I lived up Luton way for a while - not the most pleasant place from what I recall.
The trick with higher speeds is good brakes and a decent suspension. My old bike was a non suspension at first and higher speeds weren't fun. I fitted up an open springer and it improved the ride no end - a sprung seat also helps.
You need to be *very* careful in rain let alone snow - I dont know whether I'd feel safe on the ice/snow. Even with the newer tyres I've fitted.
The motor I have is a 32cc two stroke with a pipe on it. The engine mount is a Golden Eagle which is currently on a #13 gear. I have a #14 gear coming soon. Top speed is around 35mph.
"....Look, no pedals... *thud*..." The mating call of the motorized-biker.
"RetroEagle" - 32cc Two-Stroke, Piped. 35mph on #13 gear. Reversed stem with springer fork.