Hi PAUL,
That photo of DUNLOP bridge brings me back in 1985, 22 years before !
I raced for super kart 250 world championship,and at full 6th speed, 250 km/H, about 155 mph for you, we were flying on 25 m just before braking for right curve " la chapelle". It was the short circuit( Bugatti).
We were youngs and fools ,but what a big souvenir this hump !