Like the name states, these are stimulants for your wheels! Light synthetic oil, Delrin Crowns, Rubber Serviceable Shields are a few of the things that makes these bearings awesome. These are rated ABEC 7
FEATURES
• Thermally Applied Coatings enhance corosion resistance
• Grade 10 Hardened Steel Balls for higher rockwell rating
• Friction-free Rubber Shields fast and easy to maintain
• Pre-lubricated with Amphetamine Synthetic Speed Oil
Overall Rating for New 2011 Amphetamine Abec 7 Wheel Bearings Green