Originally Posted by
fietsbob
I have a couple years on a narrow 74 axle 28 hole Shimano - Brompton wheel, my only Issue is the plug..
It is less secure than the 2 spade fittings used by the German SON ..
& I have ridden off unlit , then had to stop and push the plug down to regain contact.
the plug is common to all shimano hubs..
The wire connector plug is only a few bucks, maybe you just need a new one.
If anybody reading this has an SP hub, SP also can use the Shimano wire connector plug.