|In fictional media|
|First Appearance||Bakusou Kyoudai Let's & Go! Return Racers!|
It was belongs to a grown up Tokichi Mikuni, modified from the Spin-Axe.
The body of the Spin-Axe Zero is the same as the original Spin-Axe, but with several key differences.
The canopy and rear fins parts resembling the one from the Spin-Viper, and the headlamps has been changed to the triangle-shaped ones. It also missing the front wheel guards.
It is mainly in blue, with yellow/orange thunder-styled decals on it.
In the manga
In order to win against the young man (who is a construction worker worked for Tokichi's company) in a rematch, Tokichi modified the Spin-Axe's body by thinning it to the point that the bodyshell has become partially transparent to reduce the car's total weight.
Because of the reduced weight, the Spin-Axe Zero is capable of passing through the corners very fast and smooth because of reduced G-forces induced by hitting the guide fence. It is also capable of running fast on straight by not touching the guide fences via the slalom-like motion.