Clutch arm rivet and rpm

[vollender]

Is there a general rule for lowering rpms with rivets in the clutch weights.

I have a 06 apex on asphalt,all stock. I am banging the rev limiter. I have 73.4g weights with rivets in tim and center. I did get the 4.5g rivets to add to top hole, but not sure if I should do this. I have stock helix with 70 twist. 4200 engaugment.

Just wondering if there is a rule of thumb on how much weight per 100 rpm.

Thanks Ray

 

[Stubbs]

Typically a gram of weight out in the tip hole is worth a couple hundred drop in RPM ish, all else being equal.