Arrma Big Rock 4x4 3S Hub Adapters – Convert 14mm To 17mm Wheel Hex

Want to run bigger, stronger wheels on your Arrma Big Rock 4x4 3S?

These hub adapters let you convert the stock 14mm hex to a more common and robust 17mm hex.

They're brand new and made for 1/10 scale vehicles like buggies, crawlers, and monster trucks, and they work with electric, nitro, and glow fuel rigs.\n\nThe listing says the brand is Traxxas, but these are specifically designed to fit the Arrma Big Rock 3S model.

By switching to 17mm hexes, you open up a ton of options for aftermarket wheels and tires.

It's a simple upgrade that makes your truck more versatile and ready for tougher terrain.