# OneDrop Side Effect

**URL:** <https://forums.yoyoexpert.com/t/onedrop-side-effect/397209>\
**Category:** General Yo-Yo\
**Created:** [March 23, 2024, 11:36pm UTC](https://forums.yoyoexpert.com/t/onedrop-side-effect/397209 "2024-03-23T23:36:23Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![DaddyOldBeard](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/daddyoldbeard/32/608841_2.png) [@DaddyOldBeard](https://forums.yoyoexpert.com/u/DaddyOldBeard)\
**Post date:** [March 23, 2024, 11:36pm UTC](https://forums.yoyoexpert.com/t/onedrop-side-effect/397209/1 "2024-03-23T23:36:23Z")

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we have a Yelets. and it has a hole in the middle. I saw some pics with the center having a flat rivet. is that a side effect accessory? what doe it do? dose it change the play? or just for looks?

**Pictures from another store have been removed.**  
**Please no not post pictures from other stores.**  
**They are generally considered their property**  
**And possibly copy righted material**  
**Thanks.**

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**Author:** ![rickyyR](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/rickyyr/32/246358_2.png) [@rickyyR](https://forums.yoyoexpert.com/u/rickyyR)\
**Post date:** [March 23, 2024, 11:40pm UTC](https://forums.yoyoexpert.com/t/onedrop-side-effect/397209/2 "2024-03-23T23:40:30Z")

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Those are Lego Side Effects. They will add some center weight compared to the hollow ones

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**Author:** ![yoyospirit](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/yoyospirit/32/219875_2.png) [@yoyospirit](https://forums.yoyoexpert.com/u/yoyospirit)\
**Post date:** [March 24, 2024, 12:38am UTC](https://forums.yoyoexpert.com/t/onedrop-side-effect/397209/3 "2024-03-24T00:38:54Z")

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Side effects allow you to change out the center to change up the weight of the yo-yo. The top one is a Lego side effect, you can actually attach Lego pieces in it. The bottom is the ultralight, their lightest side effect for the least center weight.

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**Author:** ![hsb](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/hsb/32/193274_2.png) [@hsb](https://forums.yoyoexpert.com/u/hsb)\
**Post date:** [March 24, 2024, 12:52am UTC](https://forums.yoyoexpert.com/t/onedrop-side-effect/397209/4 "2024-03-24T00:52:10Z")

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There is a “Side Effects” page on One Drop’s website with a lot of info (not linking directly because it is also a store).

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**Author:** ![Grunt](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/grunt/32/679117_2.png) [@Grunt](https://forums.yoyoexpert.com/u/Grunt)\
**Post date:** [March 24, 2024, 2:59am UTC](https://forums.yoyoexpert.com/t/onedrop-side-effect/397209/5 "2024-03-24T02:59:42Z")

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I’ll share the link, this isn’t against the rules.

> **[Side Effects - One Drop YoYos](https://onedropyoyos.com/side-effects/)**
>
> First introduced in 2010 on the 54, Side Effects are our axle system that allow for easily swapping out the hub to change the weight and the look of your yoyo.

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**Author:** ![DaddyOldBeard](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/daddyoldbeard/32/608841_2.png) [@DaddyOldBeard](https://forums.yoyoexpert.com/u/DaddyOldBeard)\
**Post date:** [March 24, 2024, 1:48pm UTC](https://forums.yoyoexpert.com/t/onedrop-side-effect/397209/6 "2024-03-24T13:48:26Z")

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I see. But I am new. I don’t understand what center weight dose. can some one explain? thanks. there is a tick side effect that looks like you can spin it like a top but the rest looks like just different styling to me.