# changing bearing size in a throw monkey

**URL:** <https://forums.yoyoexpert.com/t/changing-bearing-size-in-a-throw-monkey/24515>\
**Category:** Yo-Yo Mods and Maintenance\
**Created:** [March 9, 2011, 7:52am UTC](https://forums.yoyoexpert.com/t/changing-bearing-size-in-a-throw-monkey/24515 "2011-03-09T07:52:03Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![oyoyyoyo](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/oyoyyoyo/32/803_2.png) [@oyoyyoyo](https://forums.yoyoexpert.com/u/oyoyyoyo)\
**Post date:** [March 9, 2011, 7:52am UTC](https://forums.yoyoexpert.com/t/changing-bearing-size-in-a-throw-monkey/24515/1 "2011-03-09T07:52:03Z")

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I’m pretty sure it would be possible to mod a duncan throw monkey with a size c bearing. I was just wondering if anyone could tell me how i should go about doing it.

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**Author:** ![xaix](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/xaix/32/766_2.png) [@xaix](https://forums.yoyoexpert.com/u/xaix)\
**Post date:** [March 9, 2011, 10:28am UTC](https://forums.yoyoexpert.com/t/changing-bearing-size-in-a-throw-monkey/24515/2 "2011-03-09T10:28:28Z")

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I don’t think you can change a bearing size of any yoyo. because if change it, it wont fit.

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**Author:** ![Yummy](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/yummy/32/14065_2.png) [@Yummy](https://forums.yoyoexpert.com/u/Yummy)\
**Post date:** [March 9, 2011, 2:04pm UTC](https://forums.yoyoexpert.com/t/changing-bearing-size-in-a-throw-monkey/24515/3 "2011-03-09T14:04:38Z")

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You would need to recess an SPR into the yo-yo, which is best done on a lathe.

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**Author:** ![XminusmikeX](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/xminusmikex/32/294_2.png) [@XminusmikeX](https://forums.yoyoexpert.com/u/XminusmikeX)\
**Post date:** [March 9, 2011, 2:07pm UTC](https://forums.yoyoexpert.com/t/changing-bearing-size-in-a-throw-monkey/24515/4 "2011-03-09T14:07:31Z")

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> [@Yummy](#):
>
> You would need to recess an SPR into the yo-yo, which is best done on a lathe.

^This

Or you can do the Protostar space and recess combo too. Either way, you’ll need a lathe.

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**Author:** ![oyoyyoyo](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/oyoyyoyo/32/803_2.png) [@oyoyyoyo](https://forums.yoyoexpert.com/u/oyoyyoyo)\
**Post date:** [March 10, 2011, 7:11am UTC](https://forums.yoyoexpert.com/t/changing-bearing-size-in-a-throw-monkey/24515/5 "2011-03-10T07:11:40Z")

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thanks!