Patented seals use special material that greatly reduces friction. SKF seals make a huge difference in fork performance. Sold in a kit with one seal & one wiper, 2 kits required for both legs. Fits 2020+ Race Editons (KYB Fork), Ohlins RXF Forks Also works on the older 48mm Marzocchi forks.
SKF Fork Seal Kit - KYB 48mm