YoYoJamSKU: yyj-theory

Sale price$62.99


YoYoJam - Theory

This affordable metal yo-yo comes with a Top-On style cap.

YoYoJam is blowing the floor out of low-cost metal throws, without sacrificing performance. The Theory is in YYJ's affordable lineup, using the Classic as its base design, with a low edge and inverse round shape. The Theory is mounted with a delrin side cap (not removable). The side cap is very similar to the Lateral Cap, with a 1cm indentation in the center for Top-On style horizontal play.

One of the design features intended to improve the Theory's spin are the grooves carved into the inner body, which also provide a good fit for your fingers and excellent grind potential. With support for so many styles of tricks, the Theory will broaden your horizons!

>> Theory

More Information

Brand YoYoJam
Series None
Signature -
Style String Trick (1A, 3A, 5A)
age 13+
Designed In USA
Release Year 2013
Weight (g) 69.2
Diameter (mm) 55.93
Width (mm) 40.41
Trapeze Width (mm) 36
Body Shape Inverse Round
Body Material Plastic (Polycarbonate/ABS/PS)
Rim N/A
Bearing Type Ball Bearing
Bearing Size Size C (Large)
Response System YYJ Silicon Pad
Axle -
Twist-apart Twist-Apart
Spacer None
Bind Bind Required
Surface None
Maintenance Pad/Sticker/O-Ring Change Required


StringC3 Pro String (Fat) x100
BearingCLYW x iYoYo Pixel Bearing
MaintenanceYYF DARK MATTER Lubricant

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