These things look fantastic. Solid aluminum. Thick rubber base. High adjustability. Comes with nuts and bolts, but whether you can use them depends on your application. If not, then the stock screws should work just fine. The slots that the screws fit in look solid and will fit any bike. It even came with hex keys to set it up. The set-up is solid and shouldn't loosen at any speed on the trail. The only downside to their durability is that these things don't easily collapse if you break them. These things are a massive improvement over my last set of ABS mirrors which cracked during installation and lasted a month before chipping on the freeway. I cannot recommend them enough. I don't foresee any reliability issues, but I'll update if that changes.
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