# HELP: How to make Duncan Throw Monkey use C Bearing?

**URL:** <https://forums.yoyoexpert.com/t/help-how-to-make-duncan-throw-monkey-use-c-bearing/76745>\
**Category:** Yo-Yo Mods and Maintenance\
**Created:** [September 4, 2015, 7:32pm UTC](https://forums.yoyoexpert.com/t/help-how-to-make-duncan-throw-monkey-use-c-bearing/76745 "2015-09-04T19:32:55Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![FoolsGoldDigger](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/foolsgolddigger/32/7928_2.png) [@FoolsGoldDigger](https://forums.yoyoexpert.com/u/FoolsGoldDigger)\
**Post date:** [September 4, 2015, 7:32pm UTC](https://forums.yoyoexpert.com/t/help-how-to-make-duncan-throw-monkey-use-c-bearing/76745/1 "2015-09-04T19:32:55Z")

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Does anyone know of a pre-existing mod or how to mod a Duncan Throw Money to accept size C bearings?

So far the only ideas I have come up with is drilling out space for a Chico anything kit (Which woud make the yoyo almost 90 grams) or drilling a smaller hole and putting in a yyf protostar spacer on each side and then silicone recessing the yoyo around the spacer. But again, I do not know how I would do this so any help is much appreciated.

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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:** [September 5, 2015, 3:20am UTC](https://forums.yoyoexpert.com/t/help-how-to-make-duncan-throw-monkey-use-c-bearing/76745/2 "2015-09-05T03:20:28Z")

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Not w/o major surgery or an SPR kit. Unless you have a real attachment to it or have the tools to tackle it, and enjoy tinkering, you’re better off buying a new yoyo.

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**Author:** ![AngryGumball](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/angrygumball/32/683872_2.png) [@AngryGumball](https://forums.yoyoexpert.com/u/AngryGumball)\
**Post date:** [September 5, 2015, 6:17am UTC](https://forums.yoyoexpert.com/t/help-how-to-make-duncan-throw-monkey-use-c-bearing/76745/3 "2015-09-05T06:17:28Z")

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Mod Spacers could work, I have the one that accepts a C bearing and has silicone groove pads. Sadly, the long bolt it comes with is actually not long enough for most of my Duncans I planned on experimenting with, going to have to go to the hardware store and get a longer one.