New tire and static Balance questions.

[fastxl]

Got some new Shinzo SR712. Mounted the rear, put the red dot with the valve stem. Put it on the static balancer and can’t get it to balance with less than 3oz (84grams) of weight. I’ve tried rotating the tire on the rim and still it takes the same weight, just in a different spot compared to the “heavy” spot I marked. Doing something wrong? Seems like a lot of weight considering the previous had nothing.

[Laitch]

Without understand your technique or which equipment is being used, it's unlikely I'll understand what—if anything—went wrong. I'd have no problem installing six 0.25oz weights on each side of the circumference line of the rim, centered on the balance mark. I'd also have no problem not weighting the wheel at all then testing it at road speed for vibration detection.

Once I learned how motorcycle tires are made, I realized how significant variations in a model are possible, so I just have confidence in my equipment and move on with one strategy or the other.

[Scott_]

Next time you have the rubber off the rim, static balance the rim alone... you might be surprised that the stem may not be the heavy spot.....most of the time it is, but not always.

I've done static balancing, I've done the DynaBeads, I can't say as I've noticed that much difference with the beads to be worth the hassle of cleanup/reclaim when changing the tire the next time.

When I do static balance, I measure the rim alone, then put the dot of the tire at the heavy spot of the rim, even if it's not the valve stem.

[The Mighty Gryphon]

+1 on finding the heavy spot on the bare rim.  Almost all of my wheels have a heavy spot somewhere away from the valve stem.  On one of them it's about 90 degrees away.  That wheel was always a royal b!tch to balance until I found the heavy spot.

Right now my horizon chaser K75RT has Metzlers that I had mounted when I was passing through Colorado a couple years ago.  The rear has 9 weights!

[stokester]

+1 on finding the heavy spot on the bare rim.  Almost all of my wheels have a heavy spot somewhere away from the valve stem.  On one of them it's about 90 degrees away.  That wheel was always a royal b!tch to balance until I found the heavy spot.

Right now my horizon chaser K75RT has Metzlers that I had mounted when I was passing through Colorado a couple years ago.  The rear has 9 weights!

I've marked the heavy spot on my rims as well and don't get overly concerned with the amount of weights added during balancing.
After some miles I have done a rebalance.