I am very surprised that my Kysrium wheel repair has been holding up. I’ve got close to 1000 miles on the repair now without a problem. With that success under my belt I turned to an old Dura Ace Open Pro rear wheel. I purchased this years ago on ebay dirt cheap but I always thought something was wrong with it because it would make a ticking noise with every rotation.
The wheel has been almost completely unused for the last 3 years but I recently put it back on my CAAD9. It was ticking and I had the idea t o put a nut on the valve stem, something I never do. That seemed to eliminate the ticking noise. All was good until the tire flatted. I discovered after all these years without ever checking that the cause of the noise was rim damage around the valve stem hole. I guess the nut pulled the tube up tight into the crack.
I spent some time sanding the area but I didn’t do any drilling, I don’t think there is really any structual weakness here. I’ve been riding this wheel like this a while now. After applying aluminum etch I used 4 layers of carbon and then sanded them and drilled a new hole.