Motegi

The Moto3 race at Mobility Resort Motegi in Japan represents a key round in the FIM MotoGP World Championship. This event brings the lightweight racing class to one of Asia's premier racing facilities, where young riders compete on 250cc single-cylinder machines around a technical road course.

Circuit Overview

Mobility Resort Motegi sits in Tochigi Prefecture in the northern Kanto district of Japan. Honda Motor Co., Ltd. built this facility, which opened in August 1997. The company owns the venue, while Honda Mobilityland operates it.

The road course measures 4.801 kilometers (2.983 miles) in length. Riders navigate 14 corners consisting of 8 right-handers and 6 left-handers. The track features a maximum straight of 762 meters and an elevation difference of 30.4 meters. The circuit width spans 15 meters. The venue can accommodate 68,156 spectators.

Honda constructed the circuit by modifying several mountains to create a bowl-shaped layout. This unique construction method gives the track its distinctive character and viewing angles.

About the Moto3 Class

Moto3 serves as the entry-level category in Grand Prix motorcycle racing. The class was introduced in 2012 to replace the 125cc category. Young riders use this class as a stepping stone to reach higher levels of competition.

Rider Requirements

Competitors must be at least 16 years old, with a maximum age of 28. Junior champions may receive exceptions to the minimum age requirement. The class features emerging talent from around the globe.

Manufacturers

Key manufacturers in Moto3 include KTM, Honda, GasGas, and Husqvarna. These brands provide the machinery for teams competing in the championship.

Technical Regulations

Moto3 regulations control costs while ensuring close competition on track.

Engine Specifications

All bikes use 250cc, single-cylinder, four-stroke engines. The maximum bore size is 81mm. Crankshaft speed cannot exceed 14,000 rpm. Engines may have a maximum of four valves. Pneumatic or hydraulic valve systems are prohibited. Valve timing systems must be chain-driven, and variable valve timing or lift systems are not allowed. A complete engine, including the intake system and one transmission, has a maximum price of €12,000.

Chassis and Components

The chassis must be a prototype design within FIM Grand Prix Technical Regulations. Gearboxes can have a maximum of six speeds and must be conventional systems. Brake discs must be made from ferrous materials. Suspension systems must be conventional and mechanical. Active, semi-active, and electronic control systems are prohibited.

Weight and Electronics

The combined minimum weight of motorcycle and rider is 148 kg. Only approved ignition and fuel injection control units (ECU) from the series organizer are permitted. Fuel and engine oil must come from official suppliers and comply with FIM Moto3 specifications.

Exhaust System

Variable length exhaust systems are not permitted. No moving parts such as valves or baffles can be used in the exhaust system. The maximum noise level is 115 dB/A.

Historical Context

Mobility Resort Motegi has hosted Grand Prix motorcycle racing since 2000. The venue initially held the Pacific motorcycle Grand Prix until 2003, then became the home of the Japanese motorcycle Grand Prix from 2004 forward. The circuit has witnessed many memorable Moto3 races since the class began.

Additional Features

The Honda Collection Hall is located within the Mobility Resort Motegi complex. This museum displays historic Honda racing and production cars and motorcycles. Visitors can explore the brand's heritage and racing achievements.

The facility was originally named Twin Ring Motegi due to its two distinct race tracks: a 2.493 km oval and the 4.801 km road course. The oval track demolition began in May 2026, marking a transition for the venue.

What to Expect

The Moto3 race at Motegi showcases the future stars of motorcycle racing. The technical nature of the circuit challenges riders to demonstrate precision and skill. The tight competition characteristic of the Moto3 class often produces close battles throughout the field. Japan's passionate racing fans create a strong atmosphere for competitors and teams alike.