Shaft drive surge

[Sooty09]

From time to time on light loads I feel a surge/vibration which I think is from the shaft drive, its a bit like a tight spot on a chain drive, and is usually felt when driving at low speeds or when riding solo with the suspension set for two up.
Looking at the microfiche I notice both ends of the shaft have Hooks type universal joints.

I think its universally accepted this type of joint is not very good for transmission through a large angular range and can cause vibration. Can anybody suggest why BMW do not fit normal CV joints as fitted to almost every car these days?

 

[C-J]

Noticed similar the other day after dropping pillion off and not changing settings.. Changed ESA back to one up and went away. Assumed the same as you, large angles, causing a funny..

Solution, don't ride one up, in 2 up setting. Simples.