MAX bearings, designed by Enduro Bearings, are a high-performance option for frame pivots. Unlike standard ABEC 3 or 5 bearings, MAX bearings are designed without retainers and have 40% more balls. This unique design allows them to carry a higher load, making them ideal for frame pivots.To further enhance longevity, these bearings are packed with CRC Marine Grease. This specialized grease is resistant to washing out or breaking down when exposed to moisture, ensuring that your frame bearings will last even longer.Here are the specifications for the MR 21531 2RS - ABEC 3 MAX bearings:- Bearing Code: MR 21531- Dimensions: 21.5mm x 31mm x 7mm- ABEC: 3 (high grade)- Seals: 2RS (double rubber sealed)- Grease: CRC Marine Grease- Application: Frame Pivots- Weight: 26.12gUpgrade your bike's performance with Enduro Bearings' MR 21531 2RS - ABEC 3 MAX bearings. Enjoy a smoother ride and increased durability on your frame pivots.