All Balls Racing Fork Seals Honda Grom Monkey 125 PCX 150 Polaris RZR 170 Up to 30% longer tire

Up to 30% longer tire life & 2–5% better fuel economy (real-world on scooters & mini bikes)

From there

It also withstands higher temperatures than semi-metallic

NCY has created a high-end torque spring that does not wear as much as your typical compression springs

All Balls Racing Fork Seals Honda Grom Monkey 125 PCX 150 Polaris RZR 170 Up to 30% longer tirePatented fork seal features a balanced 3 lip design that evenly distributes the pressure reducing operating temperature, wear and friction Custom Elastomer Fork Seals have been tested to outlast OEM fork seals. Extends typical seal life by 3 to 5 times over OEM seals Stiction (friction) measures from 1 3 to 1 2 less than OEM seals for smoother fork action Lower Stiction, Longer Life! It doesnt get any better than this! Plus, the only complete line of