Heres a first posting in three wheeled.

Anyway, i'm building a trike for my mate who only has a bike license do you know what you can ride on a bike license ?

and could his wife who only has a car license also ride it ?

is it a car or a bike ? arghghghg

car licence req i think

Iv also been thinking about this as a future project (after seeing jesse james turn a truck into a trike ) but not sure about the licence

its all in here

http://www.direct.gov.uk/en/Motoring/DriverLicensing/WhatCanYouDriveAndYourObligations/DG_4022547

A plastic pig BEC of course

[Edited on 24/7/08 by stuart_g]

Look here http://www.trikeshop.co.uk/trike_law.htm

still cant work out if you can ride a trike on a car license ?

Yes you can (read it on one of the links but cant remember which)

You need category B1 on your licence to ride or drive a 3 wheeled vehicle of up to 550 kg. You can get B1 with a full bike licence or car licence depending when you got your licence. Your B1 entitlement may only be provisional on newer licences.

thought you could ride a trike because you can drive a 3 wheeled reliant without passemgers though I think