# YYF Northstar weight mod question

**URL:** https://forums.yoyoexpert.com/t/yyf-northstar-weight-mod-question/421624
**Category:** Yo-Yo Mods and Maintenance
**Created:** [March 24, 2025, 3:43am UTC](https://forums.yoyoexpert.com/t/yyf-northstar-weight-mod-question/421624 "2025-03-24T03:43:07Z")
**Posts on this page:** 7
**Page:** 1

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### Author: ![dariram](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/dariram/32/594557_2.png) [@dariram](https://forums.yoyoexpert.com/u/dariram)
#### Post date: [March 24, 2025, 3:43am UTC](https://forums.yoyoexpert.com/t/yyf-northstar-weight-mod-question/421624/1 "2025-03-24T03:43:07Z")

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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 🙏🏻

 ![1000009424](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/9/8/e/98e0995ed7c8dccf37f9bf3b0375511d1de4b135.jpeg)

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### Author: ![Splizacular](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/splizacular/32/640487_2.png) [@Splizacular](https://forums.yoyoexpert.com/u/Splizacular)
#### Post date: [March 24, 2025, 3:49am UTC](https://forums.yoyoexpert.com/t/yyf-northstar-weight-mod-question/421624/2 "2025-03-24T03:49:34Z")

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i bet @pyrotechnic or @SarahJ can advise you on that

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### Author: ![rysk\_9844](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/rysk_9844/32/641377_2.png) [@rysk\_9844](https://forums.yoyoexpert.com/u/rysk_9844)
#### Post date: [March 24, 2025, 3:59am UTC](https://forums.yoyoexpert.com/t/yyf-northstar-weight-mod-question/421624/4 "2025-03-24T03:59:42Z")

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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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### Author: ![Captrogers](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/captrogers/32/647012_2.png) [@Captrogers](https://forums.yoyoexpert.com/u/Captrogers)
#### Post date: [March 24, 2025, 2:28pm UTC](https://forums.yoyoexpert.com/t/yyf-northstar-weight-mod-question/421624/5 "2025-03-24T14:28:36Z")

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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

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### Author: ![jhb8426](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/jhb8426/32/631_2.png) [@jhb8426](https://forums.yoyoexpert.com/u/jhb8426)
#### Post date: [March 25, 2025, 12:57am UTC](https://forums.yoyoexpert.com/t/yyf-northstar-weight-mod-question/421624/6 "2025-03-25T00:57:29Z")

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What are the weight rings made of? Both the same material?

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### Author: ![Tempura](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/tempura/32/246135_2.png) [@Tempura](https://forums.yoyoexpert.com/u/Tempura)
#### Post date: [March 25, 2025, 1:02am UTC](https://forums.yoyoexpert.com/t/yyf-northstar-weight-mod-question/421624/7 "2025-03-25T01:02:30Z")

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Do the spacers from the new one fit the old one?

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### Author: ![dariram](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/dariram/32/594557_2.png) [@dariram](https://forums.yoyoexpert.com/u/dariram)
#### Post date: [March 25, 2025, 3:04pm UTC](https://forums.yoyoexpert.com/t/yyf-northstar-weight-mod-question/421624/8 "2025-03-25T15:04:46Z")

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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!