The much-awaited documentary James May’s Toy Stories: The Motorcycle Diary will be screened this week.
Much of the programme was filmed in August during the Manx Grand Prix.
It involved the Top Gear star completing a lap of the Mountain Course on a motorbike and sidecar built of Meccano alongside co-presenter Oz Clarke.
The bike, comprising thousands of pieces of Meccano, was constructed by Toy Stories project manager, inventor and engineer Simeon Oakley, popularly known as Simmy, over nine weeks – and had not been properly tested before it took to the TT course.
During the challenge, Mr May told Isle of Man Newspapers: ‘You think the darn thing’s going to fall apart and that would be embarrassing with no Christmas special!
‘I have to treat it very gently. Meccano is a toy, full of holes and very weak.
‘In TV there is a lot of false jeopardy. But we genuinely have not really tested this.’
The show will feature on BBC2 on Friday at 9pm.