Boost Afterburner

YoYoFactorySKU: yyf-boostafterburner

Sale price$59.99


YoYoFactory - Boost Afterburner

It's two-layered construction, but not bimetal?? Alex Hattori's newest signature model blasts off!

Absolutely dominant in the US National 3A Yo-Yo Contest, since 2013, Alex Hattori is a tinkerer at heart, and always guarantees something unique. Taking its pedigree from the Boost namesake, the Boost Afterburner looks like a bimetal design at first, but these two parts are made of the same 6061 aluminum alloy, but is still machined and assembled like a bimetal throw. A unique construction for a full metal yo-yo!

And why? Because it's not just the materials, but the design of a 2-layer construction that gives certain qualities to the yo-yo's weight distribution. Alex explored how the outer rim weight design changed between a single-layer and dual-layer construction. The dual-layer would perform more like it were bimetal, even though the materials had the same density. Especially in the wind, there's just something powerful about the way the yo-yo eats the string, and the sensation of the yo-yo when it hits that dead sleep.

Alex recommends you fine-tune your play experience with different string thicknesses, and finds it a good match for extra thick strings. The unique playfeel is worth it alone, but the Boost Afterburner is a downright excellent and highly-developed conceptual yo-yo.

Official Description

Alex Hattori is the most successful competitor in the history of the USA National contest winning an amazing 6 times.

The BOOST afterburner is engineered, not just machined. Constructed in composite of multiple pieces of 6061 alloy This allows unprecidented speed and stability resulting smooth, powerful and fast play.

More Information

Brand YoYoFactory
Series None
Signature Alex Hattori
Style String Trick (1A, 3A, 5A)
age Not Mentioned
Designed In USA
Release Year 2020
Weight (g) 66.5
Diameter (mm) 56.84
Width (mm) 44.01
Trapeze Width (mm) 41
Body Shape H-Profile
Body Material Aluminum (6061)
Rim Aluminum
Bearing Type Center Trac Bearing
Bearing Size Size C (Large)
Response System Slim (OD 19mm)
Axle M4 x 10mm
Twist-apart Twist-Apart
Spacer None
Bind Bind Required
Surface Smooth Processed
Maintenance Pad/Sticker/O-Ring Change Required


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

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