I want to share this in case others are contemplating buying tank badges. I got mine for a Ray, the VJMC guy (PM me for contact). They look great. I mounted them carefully with the supplied JIS screws and made sure not to tighten them down too much but just enough to hold them in place (I didn't use anything on the threads).
After revving the engine a bunch, the badges cracked in several places. One 1/4" crack from an edge inward, 3 circular cracks around screw holes.
My guess is that if the tank's metal mounting surface isn't very flat, the twisting pressure is enough to start cracks in the fragile plastic. The original HONDA badges had cushioning built into the badge back to absorb vibrations.
I intend to buy another set soon, but I'm going to look into cushioning the badges: either with tiny rubber grommets or O-rings, or a flat piece of rubber or gasket material. I think I'll also tap the threads to metric so I can use off-the-shelf hardware and not worry about losing an original.
Badges ... nice but fragile
Badges ... nice but fragileDana
1966/7 CB-77 Red of course 1976 CB-550F (project over-budget and under-funded) 1985 GS-450S (Land Speed Racer)
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