1. specification：ABEC-10 608RS
2. Dimension : Internal diameter8MM×External diameter22MM×thick7mm
3. Weight :15g
Adapt the modified electric skateboard 80,90,97 wheelsWith timing wheel assembly。
7M bearings higher than the 3MM, in order to better with the fixed wheel fixed firmly.
(Note: need to wear off the bridge 3MM, please carefully buy)