Originally Posted by
tetonrider
4 quarters seems like a lot!
I think it’s a red herring (even descending at up to 60mph) through I know others who claim to be sensitive to it.
Tubular? Do it right. Pull the tire and use a countersink drill bit (by hand even) to lightly chamfer the edges of the valve opening.
Hope for tubulars often seem to be related to a tall spot when the base tape overlaps.
If not a tubular...there may be a bigger issue.
I agree. The weight is less of an issue although I have balanced some TT wheels.
The latest cx tubular rims Mercury sent me had a c'sink around the valve hole. With a big 33mm on there, it was the least important of all wheels for a counter sink, but it was a nice touch. I sometimes take a razor to the tape on the valve.