Shadow transport secretary Tim Yeo said:
It is completely inconsistent to say that a cyclist can use their mobile but a driver cant. Distracted cyclists can injure themselves and pedestrians.
And, worse, fall under the wheels of juggernauts. Clearly, cycling while cell-phoning is a big no-no.
But cycling MP Boris Johnson, recently sacked from the Tory front bench for 'lying', could argue against the amendment.
Two years ago he wrote: Just as I will never vote to ban hunting, so I will never vote to abolish the free-born Englishmans time-hallowed and immemorial custom, dating back as far as 1990 or so, of cycling while talking on a mobile.
Among the many political tasks I have set myself is to prevent the practice from ever being outlawed by Parliament.