FR teamed up wtih TwinCam to offer the MW9 Inline Skate Bearings on their own as seen here, as well as in some of their top performing skate packages. Rather than being shielded on both sides, one side is open for reduced weight and ease of service and lubrication. Great quality bearings with the durablity of TwinCam. The rating is similar to that of ABEC, but specific to inline skating as designated by TwinCam.
Exclusive 6-Ball Design
Nylon Retainer with Self-Lubricate Material
Inner Ring with Exclusive Design "SCRS", Avoids Contaminates
Ultra Light Gel Lubricant for Better Protection of Balls & Retainer
Clearance Designed for Inline Racing
Less Lubrication Needed - Less Friction - More Speed
Spacers NOT Included