Does anybody have experience with reducing the weight of the newer Northstar(top) to be 3 grams lighter and play like the 2010 J.K. Northstar(bottom)?
Where would be the best place to reduce the weight? Axle? Bearing? Drilling holes?
Please advise 
i bet @pyrotechnic or @SarahJ can advise you on that
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probably you need to swap a lighter axle an bearing setup (titanium axle + ceramic bearing) to reduce a little bit of gram but it would be expensive to buy those parts
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The cheap and dirty solution would be to use a lathe or Dremel carefully and make finger-spin hubs but that’s a fairly aggressive mod
What are the weight rings made of? Both the same material?
Do the spacers from the new one fit the old one?
looks like this is a topic of interest. I’m currently working on getting some data from both yoyos and making a plan of action. i’ll have more info soon. Thanks community!
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