what are shims and schmoove rings?


#1

i have no idea what either of these things are. i see people talking about them but i get all confused. someone please tell me what these things are


#2

Shims are spacers that you can put in the bearing seat to make the gap wider on your yoyo and schmoove rings are circular grooves sometimes cut into moded yoyos. They are suposed to lower the friction on the string as well as decreasing the weight of the yoyo.


#3