OldDiffusion Red
Manufacturer YoYoRecreation
Release date 2012
Shape Step Round
Color Red
Baby Blue
Weight 66 grams
Dimensions Diameter: 56mm

Width: 40mm

Material Plastic
Bearing size Size C concave
Response system YYR 19.6mm Pads

The Diffusion by YoYoRecreation is the company's first foray into producing high performance plastic yo-yos.


The Diffusion's shape appears to be based on the classic Stargazer model, but with a slightly larger diameter. The side caps each have a small dimple in the center for finger spins. The Diffusion also features the usual YoYoRecreation 19.6mm silicone response pads, as well as a large concave C-bearing and a pair of shims for adjusting the string gap width and responsiveness.

Diffusion (2014)
YYR Diffusion2 Yellow
Manufacturer YoYoRecreation
Release date 2014
Shape Step Round
Color Various
Weight 65 grams
Dimensions Diameter: 58mm

Width: 43mm

Material Plastic
Bearing size Size C Double Straight
Size C- Large Narrow
Response system YYR 19.6mm Pads

Diffusion (2014)

In 2014, YoYoRecreation released an updated version of the Diffusion. The new model is larger and lighter than the original. The sides are now entirely concave, to allow for easier and longer finger spins. Rather than the separately-attached sidecaps of the original, the new Diffusion's halves are a solid piece construction.

Like with the original, it features YoYoRecreation's 19.6mm silicone response pads, but this time, it also boasts a string-centering Double Straight (DS) bearing, which was also unveiled upon release. The Diffusion was also packaged with a narrow bearing for responsive play.

While the original Diffusion had met with lukewarm response, the new Diffusion was hailed by many players as the best new plastic yo-yo of 2014.

POM Diffusion
Manufacturer YoYoRecreation
Release date 2016
Shape Butterfly
Color White
Weight 69.7 grams
Dimensions Diameter: 56.5mm
Width: 42.65mm
String Gap Width: 4.6mm
Material POM
Bearing size Size C Double Straight
Response system IrPads (Large Slim)

POM Diffusion

In March 2016, YoYoRecreation announced the release of a new version of the Diffusion, which is made of POM (polyoxymethylene) plastic and has a blasted finish. POM's higher density than the polycarbonate of the previous iteration makes it more solid on the string with a more powerful spin.

However, there are slight vibrations due to shrinkage of the POM during the manufacturing process, so a response pad size different than the standard 19.6mm was chosen.

A limited run of these yo-yos were released exclusively at the EYYC and 44Festival. Some examples were sold on YoYoExpert and the YoYoRecreation online store.

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