Studying this picture of rbt1548's lovely M900Sie, I notice that the red spot is apparently randomly positioned on the rim and that there is a balance weight approx. 90 degrees round from it.
This is in no any criticism of Robert's bike, but shouldn't the red spot be placed near the valve? I though it marked the lightest point of the tyre and so putting it near the valve assists in balance?
Both my new Angels have the red spot on the valve and also further weights, which on the front are also near the valve. (not so the rear.)
I seem to be needing more weight to balance with the new ones.. Are they getting sloppy with the evenness of construction these days?