I am interested in buying a 2 seater in the 600 range can you advise me i am in Uk will the bike come restricted to 25 mph as am wanting to use it mainly on road and 25 mph is a bit slow or can this be changed once received sorry newbie not wanting to spend large amount of money on something thats going to go just 25 mph and not do what i want it to do thank you in advance much appreciated am in the Uk also

[2015 Z Force 800 53/Trail EPS]

It is my understanding that all sent to anywhere in Europe are speed restricted. The ECU had top either be replaced with one from the US, or re-flashed. 

Cf moto UK site says they come as T3 tractors, which means 40km/h (25mph). It seems like you don't have the T3B 60km/h (37mph) variant in UK.

https://www.cfmoto.co.uk/cfmoto-t3-l7-and-t1-whats-the-difference/

So ecu swap/flash is your best option. Or you can trick the speedometer whit speedohealer, but that may mess up your odometer also.

thats why you buy an extra ECU and ship it over here on the sly . . .

or have a friend over here buy you an American ECU and send you a nice Xmas gift.

Theyre easy and quick to change . . so if the fun bandits get wise, you can swap in your stock brit ECU and act innocent.