As that has never happened in relation to someone being unfit to ride a pedal cycle, I’d say it’s safe to assume that no, you can’t lose your licence for being drunk on a bike.
Because otherwise courts could then just go and disqualify people from driving for handling stolen goods, or assault, or fiddling their taxes….
Disqualification under section 146 upon conviction of any offence provides both an additional punishment and a preventive measure available to the court, but the court cannot impose a period of disqualification arbitrarily. There must be a sufficient reason for the disqualification (R v Cliff [2004] EWCA Crim 3139).
What is sufficient reason will vary from case to case, and while this will fall short of needing to prove use of a vehicle to commit or facilitate the crime, the defendant should at least have shown either bad driving, (as in Cliff) or for there to be some connection with the offending to support the argument that a disqualification will prevent further offending. Examples may include; cases where the defendant regularly meets co-conspirators in his car; makes numerous calls in relation to the conspiracy from his car; or regularly uses the car to go to telephone kiosks to make calls.[/url]
Pretty sure there’d ned to be a bloody good reason why disqualification from driving would be seen as a ‘preventative measure’ for any such sentence to be valid. I spose in theory it’s possible someone might just possibly be disqualified from driving for being unfit to ride a bike, but I’d reckon it would be practically impossible for a court to impose such a sentence really. And I can’t see any court wasting time trying to do so, as it could be appealed successfully on a multitude of grounds.