08/29/2026
I have had a few guys wonder if the S406MB chassis will work on a Optic, it will. The car is shown with 2.2, 5.25 tires. I recommend this set up personally with this wheel base.
There is one mod I recommend, and that is to install the Traxxas long rod ends on the rear only. The wheel base will increase to 13 5/8 inches. 13 1/4 inch without the extended rod ends.
The installation of the Traxxas long rod ends in the rear only, let the rear shocks lay down more to achieve a level ride height.
With out the extended rear wheel base, the rear sits up a little higher than the front, but not real bad to be honest.
You will also need to run a low profile servo. As you can see in the pics, the front drop bar doesn't interfere with the servo. There is always an option to order the S406MB chassis without the drop bar.
Thanks D.