Biker undertaking.

[Phil]

Watch the video again.

He was under 70mph before he passed the car on the nearside. He may have crept over 70 but not much more than 75mph. Plod accelerated hard to catch up because he thought the bike may go for it when given space.

I think it was at least 84.6mph from looking at the Vascar screen details.

It was approx 13:34:37 at the start when he passed the gantry and 13:34:55 at the end but that was after the bike had already gone under the next gantry when the video coverage resumes. The distance between the 2 gantries was 0.423 miles (121.619 miles to 122.042 miles) if you look at when the police car passed the 2. So under 18 seconds so at least 84 mph.

Have I got that right?