For me at Sebring I find the stock mirrors lack clarity. I attribute this to the normal high frequency engine vibration of a race car, but also the low frequency movement of the panel they are mounted to.
I have tested some double take mirrors mounted on this adapter this weekend with good results. There is still a loss of clarity at a couple resonant frequency RPMs but otherwise a large improvement. Some other pros you might consider even if clarity is not an issue; Adjustment is obviously way, way easier than the stock mirror, you are able to raise them higher to see over the rear wheel arch (I couldn't with stock) and just generally have more free movement and positioning. I did not get to test it over the rumble strips or getting a little to frisky with the curbing though, so this is a preliminary report. One downside is they look dumb as hell.
I had A second set I was going to mount to test but did not get the chance unfortunately. I suspected they would not hold their position though because they were a single friction join that spins 360 and pivots 20 degrees with no option to lock the joint.
Also I will share a modification to the stock mirror you might want to be aware of in case you run into the same problem I had. The base is held from rotating with a roll pin, one of mine spun loose and the other wasn't even drilled in contact, so I re-drilled both and used a larger roll pin. If your base ends up spinning this is your problem.
Double take mirrors
The mirrors I didn't get to test
Larger roll pin to keep base in place.
I have tested some double take mirrors mounted on this adapter this weekend with good results. There is still a loss of clarity at a couple resonant frequency RPMs but otherwise a large improvement. Some other pros you might consider even if clarity is not an issue; Adjustment is obviously way, way easier than the stock mirror, you are able to raise them higher to see over the rear wheel arch (I couldn't with stock) and just generally have more free movement and positioning. I did not get to test it over the rumble strips or getting a little to frisky with the curbing though, so this is a preliminary report. One downside is they look dumb as hell.
I had A second set I was going to mount to test but did not get the chance unfortunately. I suspected they would not hold their position though because they were a single friction join that spins 360 and pivots 20 degrees with no option to lock the joint.
Also I will share a modification to the stock mirror you might want to be aware of in case you run into the same problem I had. The base is held from rotating with a roll pin, one of mine spun loose and the other wasn't even drilled in contact, so I re-drilled both and used a larger roll pin. If your base ends up spinning this is your problem.
Double take mirrors
The mirrors I didn't get to test
Larger roll pin to keep base in place.
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