The new Center Trac Bearing from YoYoFactory is now available; this is the SMALL Size one (Size A).
The Center Trac has a Concave outer surface so that the string is focused towards the centre of the Bearing. This result's in a much smoother and longer spinning Yo-Yo because the string does not rub against the side walls of the Yo-Yo slowing it down.
With this Bearing you will be able to compile Yo-Yo tricks which are very complicated and long.
This Bearing fits any Yo-Yo that uses the bearing Size A, or Small Size, measures 5 x 10 x 4 mm.