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Mk1 x Spinworthy RBC
A modern responsive metal yoyo designed in collaboration with Spinworthy Yoyos.
![](https://mk1yoyos.com/wp-content/uploads/2021/12/RBC_whitebox_red_3quarter-1024x630.jpg)
Width: 34mm
Diameter: 55mm
Weight: 48g
Axle: 12mm m3
Bearing: MR85 (5x8x2.5mm)
Pads: Custom
Material: 7068 Al body and caps
First released on December 20th, 2021.
![](https://i0.wp.com/mk1yoyos.com/wp-content/uploads/2021/12/RBC_whitebox_red_3quarter-1024x630.jpg?ssl=1&resize=984%2C984)
![](https://i0.wp.com/mk1yoyos.com/wp-content/uploads/2021/12/RBC_whitebox_red_profile-1024x630.jpg?ssl=1&resize=984%2C984)
![](https://i0.wp.com/mk1yoyos.com/wp-content/uploads/2021/12/RBC_whitebox_red_front-1024x630.jpg?ssl=1&resize=984%2C984)
![](https://i1.wp.com/mk1yoyos.com/wp-content/uploads/2021/12/RBC_whitebox_orange_3quarter-1024x630.jpg?ssl=1&resize=984%2C984)
![](https://i1.wp.com/mk1yoyos.com/wp-content/uploads/2021/12/RBC_whitebox_orange_profile-1024x630.jpg?ssl=1&resize=984%2C984)
![](https://i1.wp.com/mk1yoyos.com/wp-content/uploads/2021/12/RBC_whitebox_orange_front-1024x630.jpg?ssl=1&resize=984%2C984)
![](https://i2.wp.com/mk1yoyos.com/wp-content/uploads/2021/12/RBC_whitebox_black_3quarter-1024x630.jpg?ssl=1&resize=984%2C984)
![](https://i0.wp.com/mk1yoyos.com/wp-content/uploads/2021/12/RBC_whitebox_black_profile-1024x630.jpg?ssl=1&resize=984%2C984)
![](https://i2.wp.com/mk1yoyos.com/wp-content/uploads/2021/12/RBC_whitebox_black_front-1024x655.jpg?ssl=1&resize=1023%2C1023)
![](https://i2.wp.com/mk1yoyos.com/wp-content/uploads/2021/12/RBC_whitebox_bluepink_3quarter-1024x630.jpg?ssl=1&resize=984%2C984)
![](https://i1.wp.com/mk1yoyos.com/wp-content/uploads/2021/12/RBC_whitebox_bluepink_profile-1024x630.jpg?ssl=1&resize=984%2C984)
![](https://i1.wp.com/mk1yoyos.com/wp-content/uploads/2021/12/RBC_whitebox_bluepink_front-1024x630.jpg?ssl=1&resize=984%2C984)
![](https://i0.wp.com/mk1yoyos.com/wp-content/uploads/2021/12/RBC_whitebox_greenred_3quarter-1024x630.jpg?ssl=1&resize=984%2C984)
![](https://i0.wp.com/mk1yoyos.com/wp-content/uploads/2021/12/RBC_whitebox_greenred_profile-1024x630.jpg?ssl=1&resize=984%2C984)
![](https://i1.wp.com/mk1yoyos.com/wp-content/uploads/2021/12/RBC_whitebox_greenred_front-1024x630.jpg?ssl=1&resize=984%2C984)
![](https://i2.wp.com/mk1yoyos.com/wp-content/uploads/2021/12/RBC_whitebox_pinkgreen_3quarter-1024x630.jpg?ssl=1&resize=984%2C984)
![](https://i0.wp.com/mk1yoyos.com/wp-content/uploads/2021/12/RBC_whitebox_pinkgreen_profile-1024x630.jpg?ssl=1&resize=984%2C984)
![](https://i1.wp.com/mk1yoyos.com/wp-content/uploads/2021/12/RBC_whitebox_pinkgreen_front-1024x630.jpg?ssl=1&resize=984%2C984)
Two colorways were exclusive to YoyoExpert.
![](https://i1.wp.com/mk1yoyos.com/wp-content/uploads/2021/12/RBC_whitebox_YYE_3quarter-1024x630.jpg?ssl=1&resize=984%2C984)
![](https://i2.wp.com/mk1yoyos.com/wp-content/uploads/2021/12/RBC_whitebox_YYE_profile-1024x630.jpg?ssl=1&resize=984%2C984)
![](https://i1.wp.com/mk1yoyos.com/wp-content/uploads/2021/12/RBC_whitebox_YYE_front-1024x630.jpg?ssl=1&resize=984%2C984)
![](https://i2.wp.com/mk1yoyos.com/wp-content/uploads/2021/12/RBC_whitebox_gold_3quarter-1024x630.jpg?ssl=1&resize=984%2C984)
![](https://i2.wp.com/mk1yoyos.com/wp-content/uploads/2021/12/RBC_whitebox_gold_profile-1024x630.jpg?ssl=1&resize=984%2C984)
![](https://i0.wp.com/mk1yoyos.com/wp-content/uploads/2021/12/RBC_whitebox_gold_front-1024x630.jpg?ssl=1&resize=984%2C984)
The 2nd production run had red, black, and clear colorways, and was released on August 19th, 2022.
![](https://i0.wp.com/mk1yoyos.com/wp-content/uploads/2022/08/Small-RBC-Square-Red-Angle.jpg?ssl=1&resize=512%2C512)
![](https://i2.wp.com/mk1yoyos.com/wp-content/uploads/2022/08/Small-RBC-Square-Red-Profile.jpg?ssl=1&resize=512%2C512)
![](https://i0.wp.com/mk1yoyos.com/wp-content/uploads/2022/08/Small-RBC-Square-Red-Top.jpg?ssl=1&resize=512%2C512)
![](https://i0.wp.com/mk1yoyos.com/wp-content/uploads/2022/08/Small-RBC-Square-Clear-Angle.jpg?ssl=1&resize=512%2C512)
![](https://i0.wp.com/mk1yoyos.com/wp-content/uploads/2022/08/Small-RBC-Square-Clear-Profile.jpg?ssl=1&resize=512%2C512)
![](https://i1.wp.com/mk1yoyos.com/wp-content/uploads/2022/08/Small-RBC-Square-Clear-Top.jpg?ssl=1&resize=512%2C512)
![](https://i1.wp.com/mk1yoyos.com/wp-content/uploads/2022/08/Small-RBC-Square-Black-Angle.jpg?ssl=1&resize=512%2C512)
![](https://i1.wp.com/mk1yoyos.com/wp-content/uploads/2022/08/Small-RBC-Square-Black-Profile.jpg?ssl=1&resize=512%2C512)
![](https://i0.wp.com/mk1yoyos.com/wp-content/uploads/2022/08/Small-RBC-Square-Black-Top.jpg?ssl=1&resize=512%2C512)