How to Expand 12mm Hex Wheel Hub to 17mm
When replacing tires on an RC vehicle, the wheel hub hex size may not match. This post introduces how to use a hub adapter to mount 17mm hex tires on a 12mm hex vehicle.
Hex Size Differences
Traxxas vehicles use a 12mm hex for tire mounting by default, while SRX vehicles use a 17mm hex.
Generally, 1/10 scale RC vehicles use 12mm hex, and 1/8 scale vehicles use 17mm hex.
As shown in the images, some tires have the hex size labeled while others do not, so keep this in mind when purchasing tires.
Using a Hub Adapter
If you want to use 17mm hex tires but your vehicle (like Traxxas) has a 12mm hex wheel mount, you can install a hub adapter to solve the problem.
You can find the official Traxxas 17mm hub adapter at the link below.
When installing a hub adapter, make sure it is compatible with the existing 12mm hex nut. The appropriate adapter may vary depending on the vehicle model.
Conclusion
This post introduced how to use a hub adapter to mount 17mm hex tires on an RC vehicle with 12mm hex wheel hubs. Check the hex size when purchasing tires, and use a hub adapter if the sizes do not match.