On 12/30/2015 04:45 PM, iamkeith wrote:
I don't worry, in theory, about drilling up through the rear fender, for attachment directly to the seatstay brace. What I worry about is the fact that, because of the curvature of the seatstays on the clem, the hole on the brace is not oriented axially toward the center of the wheel (or fender). It aims several inches forward of the axle. So bolting tightly to it would put a lot of stress on the fender, and deform it or pull through after some use. Or would bend the bolt if I used a spacer. It's a pretty significant angle discrepancy when you see it in person - at least on the 59 clem.
Not sure I understand. Does the seatstay brace have a threaded boss or not? This sure looks to me as though it's already drilled and tapped.
If it its, you drill up through the fender directly under the threaded hole. As far as the fender surface and the seat stay are concerned, it's all in line. Where it is with respect to the hub (i.e., curvature of the stays) shouldn't matter at all, and wouldn't put any stress on the fender.
Or is the issue that the hole is drilled at a slant, and won't be at right angles to the fender surface? Looking at what looks like a bolt head in your photo, it looks as though it's straight through. (I just don't know what that little "nub" under the stay in this photo is.)
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