Box Stock:

This is meant for beginner or kids only.

Entry is prohibited if you are registered for another class (e.g. open classes). 

Motor: 

You must use the motor that came with your RTR kit: either Kyosho MZ9P or MZ9E Motor from RTR, You must keep the capacitor that came installed on your motor.

Chassis: 

Kyosho MR03S, MR03S2 and MR03 RWD

Wheels: 

Use the wheels that came with your kit or you can use aftermarket wheels which must have the same offset as the originals (for that body). Must be 20mm diameter maximum.

Front 8.5mm x 20mm

Rear 8.5mm x 20mm or 11mm x 20mm

Tire: 

Any rubber tire made by a 1/28 scale manufacturer can be used. Example: Marka, PN racing, Kyosho

Traction Compounds NOT allowed on tire or on race surface. 

Electronic & Transmitter: 

Must use the original Kyosho radio or can use Flysky NB4 with FHSS module

Gear Ratio: 

Must use 6 tooth pinion and stock gear differential 

Bodies:

90mm to 102mm Body: body must be Kyosho original AutoScale body or Kyosho unpainted white body,

NO lexan or lightweight windows allowed

Cannot use 3D printed parts, e.g. wings

Batteries: 

Any NiMH AAA battery allowed 

Option Parts and upgrades allowed: 

 Kyosho or aftermarket ball bearing like MC3 or PN Ball Bearing allowed

Kyosho or aftermarket wheel nuts allowed 

T-Plate upgrade allowed: can be PN or Kyosho. It must be the same as the original RTR kit.

Reverse king pin modification allowed.

Can change front springs (e.g. Kyosho or PN Racing)

Chassis:

Any 1:28 scale chassis but must be 90-102mm Wheel Base ONLY, No weight limit. 

Body:

Touring car body only. Can use plastic hard body like Kyosho or Jomeura or Lexan (polycarbonate). NO PAN CAR BODIES ALLOWED

There is a limit on rear wing size. Maximum wing size not bigger than original wing cutting line. #600630 PN Carbon Wing and #600640 Lexan Wing allowed.

Motor:

Any 1:28 scale motor allowed: brushless or brushed. Sensored or sensorless.

ESC:

Any 1:28 scale ESC allowed. Can be sensored or sensorless.

Battery:

Any battery allowed (AAA NiMH, 2S LiPo, AAA Li-Ion) but maximum of 8.4 volt.

Option Parts:

Any aftermarket brand Mini-Z production parts allowed.

Homemade parts, 3D print option parts and prototype parts are allowed. HOWEVER, if they are found to be dangerous to the track surface or to other cars, your car maybe disqualified if you don't remove the offending part.

Wheel:

All brand Plastic and Aluminum rims are allowed. Maximum front wheel width is 11mm. Maximum rear wheel width is 14mm. Maximum wheel diameter is 21mm. All wheel rims must be original design made for Mini-Z RACER, any modification is not allowed, any slot-car design wheel is NOT allowed.

Tire:

Any Brand of Rubber Mini-Z production tire ONLY.

Homemade tires, Foam tires, Silicon tires, Urethane tires, Ethyl Carbamate tires NOT allowed. No tire insert use. Traction compounds NOT allowed on tire or on race surface.

Tire warmers are allowed. 

Chassis:

Any 1:28 scale chassis but must be 90-102mm Wheel Base ONLY, No weight limit. 

Body:

Touring car body only. Can use plastic hard body like Kyosho or Jomeura or Lexan (polycarbonate). NO PAN CAR BODIES ALLOWED

There is a limit on rear wing size. Maximum wing size not bigger than original wing cutting line. #600630 PN Carbon Wing and #600640 Lexan Wing allowed.

Motor:

Any 1:28 scale motor allowed: brushless or brushed. Sensored or sensorless.

ESC:

Any 1:28 scale ESC allowed. Can be sensored or sensorless.

Battery:

Any battery allowed (AAA NiMH, 2S LiPo, AAA Li-Ion) but maximum of 8.4 volt.

Option Parts:

Any aftermarket brand Mini-Z production parts allowed.

Homemade parts, 3D print option parts and prototype parts are allowed. HOWEVER, if they are found to be dangerous to the track surface or to other cars, your car maybe disqualified if you don't remove the offending part.

Wheel:

All brand Plastic and Aluminum rims are allowed. Maximum front wheel width is 11mm. Maximum rear wheel width is 14mm. Maximum wheel diameter is 21mm. All wheel rims must be original design made for Mini-Z RACER, any modification is not allowed, any slot-car design wheel is NOT allowed.

Tire:

Any Brand of Rubber Mini-Z production tire ONLY.

Homemade tires, Foam tires, Silicon tires, Urethane tires, Ethyl Carbamate tires NOT allowed. No tire insert use. Traction compounds NOT allowed on tire or on race surface.

Tire warmers are allowed. 

Chassis:

Any 1:28 scale chassis. Must be Kyosho MF sized (includes MC3 FR01, FR02) or GLF sized, No weight limit. 

Body:

Kyosho hard body F1, MC3 Lexan F1 body, GLF Lexan F1 body or 3D printed body to proper scale to fit 1:28 chassis.

Motor:

Any 1:28 scale motor allowed: brushless or brushed. Sensored or sensorless.

ESC:

Any 1:28 scale ESC allowed. Can be sensored or sensorless.

Battery:

Any battery allowed (AAA NiMH, 2S LiPo, AAA Li-Ion) but maximum of 8.4 volt.

Option Parts:

Any aftermarket brand Mini-Z production parts allowed.

Homemade parts, 3D print option parts and prototype parts are allowed. HOWEVER, if they are found to be dangerous to the track surface or to other cars, your car maybe disqualified if you don't remove the offending part.

Wheel:

All brand Plastic and Aluminum rims are allowed. Kyosho F1 (includes MC3 part# MC3MOF1R) or GL Racing GLF sized wheels only. Any slot-car or larger than Kyosho F1 or GLF design wheel is NOT allowed.

Tire:

Rubber F1 tire from PN Racing, Marka or GL Racing only

Homemade tires, Foam tires, Silicon tires, Urethane tires, Ethyl Carbamate tires NOT allowed. No tire insert use. Traction compounds NOT allowed on tire or on race surface.

Tire warmers are allowed.