This tip isn’t just for Traxxas vehicles. In fact, this tip is especially handy for rock crawlers which because reverse is used so often can suffer from loose wheels. It isn’t too well known, but Traxxas offers optional machined wheel nuts that have sharp serrations cut into the back. When these 7mm nuts are used (they fit 4mm axles) with plastic rims, they stay on extremely well. You’ll notice how well they grip when you go to remove them. Check these nuts out, they have a nice blue anodized finish and fit a huge number of vehicles.