"K-TAI" refers to
What is "K-TAI"?
Let's have fun with KART together
Concept of "K-TAI"
"K-TAI" has been held since 2001.
Initially, various types of karts such as those with missions and centrifugal clutches were used, but in order to make it easier to enjoy karting, 4-stroke sports karts were introduced in 2007 and from 2010, only 4-stroke sports karts were used. However, in 2021, a new class of electric karts using electric motors was established. The class structure allows for enjoyment from beginners to advanced users.
In terms of regulations, we have set limits on the amount of fuel per refueling and the obligation to stay in the pit, not only to ensure that the fastest kart wins, but also to affect pit strategies and provide the unique enjoyment of endurance racing.
Additionally, our "K-TAI" original element allows for the retrieval of stopped vehicles on the course by pit crew, making it possible to restart and continue driving until the checkered flag is reached.
Participation is possible from the age of 10, and teams can consist of three generations from grandfathers to grandchildren...
The Enjoy 7-Hour Endurance Race is confirmed to be held on September 7, 2025 (Sun)!
Let's enjoy KART together in 2025!
Overview
This is a 7-hour endurance event held on the 4.8013 km road course of Mobility Resort Motegi using 4-cycle engine karts.
Since 2021, electric karts have been introduced, and in 2022, a class using biofuel karts was also established.
It is an easy karting event that anyone can participate in, even without a competition license.
Participation Requirements and Necessary Items
Price
September 7 (Sun): Enjoy 7-Hour Endurance 88,000yen / 1 Team
■Driver/Pit Crew Registration Fee
Driver: ￥5,000/1 person ※For non-MCoM/SMSC members
Pit Crew: ￥1,000/1 person
Helper: ￥1,000/1 person
■MS Provisional Mutual Aid Membership Fee
Driver: ¥7,000/1 person *If not an MCoM/SMSC member
Pit Crew: ¥500/1 person *If not an MCoM/SMSC member
Machine Description
[4-stroke sports kart]A system in which the organizer designates engines from various manufacturers such as Honda GX series, SUBARU EX series, YAMAHA, BRIGGS & STRATTON, and participants can choose from them.
Engines for sports karts are available at many rental kart courses nationwide, and their power characteristics and output are designed to be easy for beginners to handle.
Class I (Stay time 5 minutes)
・Honda GX200, GX200SP
・SUBARU EX21
・EIKO EX21E
・YAMAHA MZ200
・BRIGGS & STRATTON 206
Class II (Stay time 5 minutes 30 seconds)
・Honda GX270
・SUBARU EX27, KX21
・BRIGGS & STRATTON WORLD FORMULA
※Requires a limiter of 7100r.p.m.
Class III (6 minutes stay)
・YAMAHA MX300RKC
※When using MX300RKC, specify the number of teeth for each sprocket as follows.
Drive sprocket: 32 (fixed)
Driven sprocket: 69 or more
・BRIGGS & STRATTON XR1450
Engine modifications are prohibited, and only certain parts such as mufflers, carburetors, and governor devices can be added or changed.
Class E
・Electric kart driven by electric motor and battery
※Please check the special regulations for details.
Class F
・Kart using an engine powered by next generation biomass fuel
*Please check the special regulations for details.
