Yes, I usually apply a small amount of grease, but not too much. After installing the Portal Axle Gear 11T & 21T (Part No. 21040) on the YIKONG YK4106/Pro RC Car, I apply a thin layer of gear grease to the gear teeth. This helps reduce friction and wear while keeping the portal gears running smoothly.
Just remember that more grease isn’t always better. Excess grease can attract dust, sand, and other debris, which may affect gear performance over time. If you often drive your YIKONG YK4106/Pro RC Car in sand, mud, or wet conditions, it’s a good idea to clean the gears first and then reapply a small amount of grease. This will help extend the service life of the Portal Axle Gear 11T & 21T (Part No. 21040).
