My x1 Lightning has a speedo fault whereby it functions o.k. for a while then
starts to fluctuate before ceasing altogether.
Also curiously if you select the indicators it attempts to work and if you apply
either brake it will work.
I have also witnessed whilst riding in heavy rain the speedo come back into
life when apparently dead.

Any suggestions as to what might be the problem would be most welcome.

Ta Neil.

You have a dodgy connection somewhere, HTH

_________________
Wear the fox hat

Sounds like it could be that or a high resistance earth........which amounts to the same thing I suppose.