Tire Mounting

[Vic]

Should the mark on the tire that indicates the lightest spot be lined up with the valve stem or the rim lock?

It seems to me that it should be the rim lock, as it is much heavier than the valve stem.

 

[RM_guy]

To be honest I have never even taken it into consideration when mounting tires. At the speeds I go I'd never notice. When I hit 45 or 50 on a trail it usually so rough that if the tire was way out of balance it doesn't seem to matter. Next time I mount a tire I'm going to set the mark at the rim lock and see if I can tell the difference. So longstory, short, the rim lock is way heavier than the valve stem.