A final update after nearly two years and approaching 2500 miles.
The Brompton has since been updated to use Kojak tires, the three speed hub dispensed with and the Brompton two speed option used instead. Hub gears are preferable but I really only need two speeds (one to start and one once up to crusing speed) and it saves weight (about 1kg overall) which is important for carrying.
Anyway a couple of pics showing how it is running today, minus the Kojaks that are now fitted.
The battery has over over 400 charge cycles and holds charge and is as balanced as the day I first used it.
Apart from a lose soldered wire and some problems with the internal Tongxin motor clutch spring making a strange noise, both of which occured and were fixed in the first six months, the setup has been reliable and has never let me down.
Its sure going to be interesting to see Brompton's E version of this wonderfull little folder.
Regards
Jerry