Avoid anything "Chinese", the spares and service backup is a nightmare according to my lad who's a m'cycle technician
Disagree, some are decent. My local dealer sells Pulse and I recently bought my son one of these:
http://www.pulsemoto.co.uk/BT49QT-20CA.php
He'd spent a bit of time researching the market and (as he's a small workshop type dealer) had seen a fair share of crap been brought in by people who'd bought direct (also beware as you need to register them). Plus these guys run a UK spares warehouse.
They do a cheaper one, but tbh you'd be better spending a bit more to get bigger wheels, better lights/brakes etc.
It does over 100mpg and manages 44mph (after been derestricted).
Not a bad piece of kit, ok nothing like my Triumph, but it was a 1/10 of the price. And even for a 16 y/o all it took was a prov. licence and a days' CBT.
If I was buying one for short trips etc, I'd go for the 125 as its cheaper, quicker and I've a full licence.
The middle red one is my sons', the blue is the cheaper version: