The new Center Trac Bearing from YoYoFactory is now available; this is the Size C one. This Yo-Yo Bearing will really improve your play!
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 C (0.250 x 0.500 x 0.178 inches).