The piston seals are manufactured from special Viton rubber which is frozen and then CNC machined with a 'U' profile which is specifically for hydraulic use

Knee EN1621-1

These are the best in their league and an industry standard used by KTM and Husqvarna rally teams

40 and 6-ply rated casings

and testing

Supersprox - Sprocket 14 Front KTM SI (CST-1900-14-1) show damper delay message The piston seals are manufacturedDrive Sprocket Front Drive Sprocket Supersprox front sprockets are the best on the market today, with a balance between performance and longevity. Features SCM435 Ni Chrome Molybdenum low corrosion steel. Case hardened surface for maximum water resistance. Low carbon core to prevent breakage. Has the ultimate combination of strength and hardness. Rear Drive Sprocket (many style available) Stealth Sprocket (aluminum & steel) Longer system life without