I,m wondering how Davanti got on with fitting the mirror to his new Wisper? I think many handlebar grips come with a plug in the end of them. Presumably, they can be taken out & the mirror arm pushed in & tightened up etc? Mind you, I can't believe it,s that simple. Advice would be much appreciated before I place an order for a mirror of the type suggested.It does look the business.By the way, I have learned a great deal from this forum.I am glad to join. Many thanks.