by thisisatest on Fri Jul 06, 2012 1:22 am
Hey, i hadnt bothered reading this thread until now, im surprised at all the negativity. I mean, this is weightweenies, were all taking slightly larger calculated risks with 60g carbon stems that have not been properly tested, using hollow ti bolts (or aluminum!) for everything...
Somewhat back on topic, ive drilled the inner wall of my rims before. They were mtb rims, they were bontrager mustang tubeless offset rims. I drilled one hole in between each spoke hole, the same size as the one already in the inner wall, for the rear rim. For the front, i drilled the same size holes, but three per space between spokes. I may have gone back and drilled pairs of smaller holes in the rear rim after that, i dont remember.
The wheels held up pretty well, even with the ti spokes i was running. It was all on an original scalpel, rolhoff on the rear, but thats another story...
Eventually, however, i was mounting a new tubeless tire and the sidewall blew off the rim. The side force bent the rim a bit. Inspecting the damage, you could see the holes were askew somewhat, like crooked ovals, to allow the bend. It's interesting how much the rim's cross-sectional TORSIONAL stiffness and strength is involved in rim deflection, etc...
Greg