Originally Posted by
Mr. Beanz
I think back to threads about weight savings on the bike. Some riders don't replace the plastic cap over the valve stems of the tubes in order to save rotational weight!:
Don't forget the wind resistance of those valve caps.
You do know that this really applies to sew-ups, I suppose. If the tubular rolls off the rim, it's best for it to go all the way off, instead of banging around on the wheel. You also need to leave off the little knurled nut on the valve stem. Saves weight, but not much loss of wind resistance.