The boss on the underside of the brace is threaded. But it is NOT at a right angle to the face of the fender, where it wants to be. Hard to show in a picture, so I'm slightly exaggerating in the photo below, just for illustration's sake. Just slightly. On your bike, the stays point directly at the dropout/axle, so everything is "in line" as you say, and aimed more-or-less directly at what would be the center of the arc of the fender. On the clem, the hole is parallel to the stays where the brace happens to be attached, but the stays at that point are not pointed anywhere near the axle/dropout. So there ends up being a wedge-shaped gap between the top of the fender and the bottom of the boss. If I tried to firmly clamp the fender at that point, it would significantly deform and/or pull the fender out of alignment and/or stress the fender & bolt.
<https://lh3.googleusercontent.com/--faQEJVwjcI/VoRl-DvI_0I/AAAAAAAAAPo/nLNSAzMZTpI/s1600/fenderbossangle.jpg> I think the idea of sandwiching the fender between flexible rubber donuts will work. Sort of like the way stud-mounted shock absorbers attache on some vehicles, to allow a variable angle. I'll need to use a pair of nuts to lock against each other at the top, since it will not be possible to snug the bolt against anything. <https://lh3.googleusercontent.com/-9rtfy0TPAnw/VoRmCNQRVaI/AAAAAAAAAPw/6NncKO8892E/s1600/shock_bracket-fitted.jpg> Only problem with this approach is that it will increase the length of the protrusion at the underside of the fender. So I'm still open to other ideas, like the ones Ted suggests. I'll look at bending the stock mounting tab, but it doesn't seem like it will quite work. Am hoping someone has already dealt with this 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.) > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at https://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
