Regulation
[Race Rules]
■ Qualifying
The organizers will decide the groupings based on the points rankings from the previous season and the rankings from the previous race.
Qualifying will be a 5-minute lap race up to round 3. (Rankings will be determined by the total points from 2 out of 3 rounds)
*Super Lap will be abolished from the 2023 season
(Applies to all classes)
■ Advance to the finals
Two riders will advance to the finals. One will be the rider who finishes first in the B-main. The other will be the rider with the fastest finish time in all heats (excluding the top rider in the B-main). If the circuit does not allow for a 10-rider final, the winner will be announced on the day.
(Applies to all classes)
■ Finals
The final race will be 5 minutes long. However, this may change depending on the situation on the day.
(Applies to all classes)
Class-Specific Regulations
TC0 Class (Entry Fee: ¥4,000)
※ Reserved for top domestic and international drivers. Regulations may change per event.
※ Unless specified below, all regulations follow IFMAR ISTC rules.
Chassis: Commercially available 1/10 electric touring car
Motor: IFMAR ISTC or JMRCA-approved brushless motors
Weight: 1300g minimum (measured post-race; drivers must self-check pre-race)
KV Value: No restrictions
Gear Ratio: No restrictions
Battery: Commercial Li-Po batteries (7.4V/7.6V) or Li-Fe batteries (6.6V). Voltage must not exceed 8.4V at race start.
Body: Commercially available 1/10 electric touring car bodies.
Rear wheel arches must be cut or reinforced to prevent snagging using aftermarket or custom parts.
Total body weight, including wings and reinforcements, must be 60g or more (may be subject to change).
Bodies must pass pre-race inspection and bear official markings.
Tires: Control tires (announced one month before the race). A maximum of 2 sets per race. Pre-registration required.
Grip Additive: Circuit-specified additives only. Application must be performed in designated areas up to 5 minutes before racing. Additives must be personally owned by participants.
Tire Warmers: Prohibited (any tire-heating actions are banned).
TC1 Class (Entry Fee: ¥4,000)
※ Unless specified, regulations follow 2022 JMRCA 1/10 Electric Touring Car rules.
Chassis: Commercially available 1/10 electric touring car
Motor: Only approved motors for Speed King Tour are allowed. Must be JMRCA-approved 17.5T and 21.5T brushless motors from 2022 onward.
Certain HOBBYWING models and motors approved before 2021 are prohibited.
Weight: 1300g minimum (measured post-race; drivers must self-check pre-race)
KV Value: No restrictions
Gear Ratio: No restrictions
Battery: Same as TC0
Body: Same as TC0
Tires: Same as TC0
Grip Additive: Same as TC0
Tire Warmers: Prohibited
TC2 Class (Entry Fee: ¥4,000)
※ Unless specified, regulations follow JMRCA 1/10 Electric Touring Car rules.
※ Wholesale pricing is available for TC2-class products for interested retailers.
Chassis: Commercially available 1/10 electric touring car
Motor: G-Force Super Fast Type-C 13.5T
ESC: Limited to specific G-Force models
Weight: 1300g minimum (measured post-race; drivers must self-check pre-race)
KV Value: No restrictions
Gear Ratio: Circuit-dependent
Battery: Super Rajikon Li-Po Monster Power 7.4V 5200mAh 50C [RCF-5200-50C / RCF-5200-50C-LCG]. Voltage must not exceed 8.4V at race start.
Body: Same as TC0
Tires: Same as TC0
Grip Additive: Same as TC0
Tire Warmers: Prohibited
For TC2 class:
Motors, ESCs, batteries, and gear ratios are fixed for the event.
Official race motors must be used on race day, provided by the event organizers.
[Important points for all classes]
Example of measures to prevent body entrapment
[ Example of body cuts ]
[Examples of using commercially available entanglement prevention items]
In accordance with the body regulations for the 2023 season, the Speed King Tour would like you to participate in the races with as vibrant bodies as possible.
(However, this does not mean that single-colored bodies are prohibited. Cars with single-colored bodies can still enter the race as before.)
We have set up a page introducing the official Speed King Tour painters , so please refer to it when requesting painting.
(Of course, you can also use bodies that you have painted yourself or bodies that have been painted by other painters .)
[Penalties during the race]
If any driver is found to be interfering with other cars through rough driving, a penalty will be imposed on the driver in question.
Penalized racers will have their time credited after the race.
The following three staff members can issue penalties:
・Maeda (MC)
・Takagi (operation)
・Endo (operation)
Penalties may be imposed after a post-race video review.
The severity of the penalty will be determined based on the severity of the disruptive behavior.
・Add 5 seconds ・Subtract 1 lap
The disruptive behaviors that will be subject to review are as follows. Any other behavior that the management considers to be dangerous or unsportsmanlike will also be subject to review.
- Contact from behind - Obviously reckless diving onto the inside - False start (the first offense will not be penalized, but the second offense and beyond will be penalized)
・Shortcuts ・Driving in the wrong direction ・Abusive language
In addition, there may be no penalty or a reduced penalty in cases such as "making contact from behind but waiting for the car in front to return and then restarting", "slowing down immediately after taking a shortcut", or "temporarily reversing direction to return to the course after confirming it is safe".
There may be differing opinions regarding penalties, but please follow the instructions of the race management staff.