Super Stock is built for experienced racers looking to unleash the full performance potential of their Mini-Z. Featuring the upgraded Kyosho XSPEED motor and less restrictions on tuning options, racers have significantly more freedom to optimize their setup for maximum performance.

Higher speeds, advanced tuning, and serious competition make Super Stock the ultimate class for racers ready to push their Mini-Z—and themselves—to the limit.

Chassis:
Kyosho MR-04 RWD Chassis Only
Allowed Wheelbases: RWD 90mm, 94mm, 98mm and 102mm
Tuning weights allowed

Electronics:
Car Must be in full-speed mode
Kyosho XSPEED Motor (MZW301) must be used
Stock ESC Board must be used
EasyLap Transponder must be used
Open Transmitter

Permitted Modifications:
20 gauge motor wire allowed
OK to remove safety switch from motor

Not Allowed:
Built-In or Separate Gyro

Gear Ratio:
Open

Wheels:
All brand plastic and aluminum 1/28 scale production wheels allowed

Size Limitations:
Maximum Front wheel width: 8.5mm (excluding outer flange/disk.)
Maximum Rear wheel width: 11mm (excluding outer flange/disk.)
Wheel Diameter: 19-20mm
Wheels must fit inside the body

Tires:
Rubber tires only
Maximum tire diameter (mounted): 25.5mm
Maximum front tire width: 8.5mm
Maximum rear tire width: 11mm
Tires may be cleaned with 70% alcohol solution or water

Not allowed:
Tire additive or traction compound
Tire Warmers
Homemade tires

Batteries:
Cars must be powered by 4 AAA batteries
Ni-MH or Ni-Cd cell-type only

Body & Wing:
Any manufactured molded hard shell that fits the allowed wheelbase

Permitted Modifications:
Lexan roof/windows
Front splitter may be shaved to reduce the chances of snagging on track barriers
Standard rear wing for corresponding body may be used with no height limit
Custom aftermarket lexan or plastic wings must meet 45mm height limit from ground

Permitted Option Parts:
Open