I will port and install the Nubmal Upper stay Rubber, but with Rubber alone, Mirror tightening together will break. Well because the mounting surface of Bracket is flat, I think that this will keep production Cost down like this.
However, even if you just try hard and tighten it, Rubber will only get caught, so we recommend adding Color, which is the core of Rubber, like Normal stay so that it can be attached properly.
Color is 11 mm outside diameter - An inner diameter of 6. 2mm - The one with a length of 10 mm is most suitable. KITACO 's Convenience Parts has this Color setting. This is called Quantity : Pair (for Left and Right) Quantity : 2pc. By using 4 pieces in Set at a time through Rubber's hole, Rubber will not collapse and Mirror can be Firmly attached.
Fixed Nut is normally M6. If you use Flange nut rather than pinching Washer easy to lose it will detract from Bracket's hole and detaching is also easy.
Also, the advantage of this part is that Fuel Tank Front and Upper stay are not tightened together, so it is very easy to detach Tank. If it compares with NORMAL the finish is also Dunch and Beauty.
Looks like you access from European region.
Would you shop at webike.eu.com?
