If your YIKONG YK6101 RC car’s tires don’t grip well in sand, you can deflate the tires of your YK6101 RC car partially, lowering the tire pressure and allowing the tires to have a larger contact area with the sand, thus improving the grip.
Alternatively, you can replace the tires with tires specifically designed for sandy conditions. These tires usually have wider and thinner tread patterns, which are better embedded in the sand and provide stronger grip to improve the driving performance of the YK6101 RCV in sandy conditions.