Kyosho MR-04 RWD Mini-Z ReadySet w/Audi R8 LMS Body (White) w/KT-531P 2.4GHz Radio

Electric On-Road MR-04 Mini-Z Racer

The MR-04 RWD Mini-Z ReadySet with Audi R8 LMS Body by Kyosho is designed to deliver superior handling and precision for racers of all skill levels. With a fully assembled chassis and included transmitter, you can hit the track right away by simply adding AAA batteries. The MR-04 chassis improves on its predecessor with a lower center of gravity, upgraded steering, and refined suspension, offering better control and responsiveness. Whether you’re tuning for competitive racing or casual driving, the MR-04 Mini-Z provides a customizable and dynamic experience.

About the MR-04 Mini-Z

Enhanced Chassis for Superior Control

The MR-04 chassis builds on the proven MR-03 design with key improvements for better handling and stability. The lower center of gravity enhances cornering and straight-line performance, providing a more responsive driving feel. An updated front suspension system maintains consistent tire contact, improving grip and steering accuracy. These upgrades make the MR-04 an excellent choice for racers seeking both ease of use and competitive edge.

Precision Steering & Smooth Operation

The MR-04 features updated front knuckles with integrated kingpins that reduce scrub, allowing for sharper and more controlled steering. Improved ball bearings minimize rotational resistance, ensuring smooth and efficient operation during races. The rear suspension includes a coil spring damper to absorb shocks, with the option to upgrade to an oil-filled shock absorber for increased stability on rough tracks.

Customization & Compatibility

This model is designed with versatility in mind, offering full ball bearing specifications and compatibility with a wide range of optional parts. The geared differential ensures smooth cornering, while the optional gyro unit (KYOMZW711 – sold separately) provides even greater control. Whether you’re a beginner or an experienced racer, the MR-04 offers numerous possibilities for upgrades and personalized performance tuning.

Features:

• Fully assembled chassis and transmitter
• Lower center of gravity for improved handling
• Updated front suspension for better tire contact
• Integrated kingpin design for sharper steering
• Improved ball bearings for smoother operation
• Rear suspension with coil spring damper
• Geared differential for smooth cornering
• Optional gyro unit for advanced control (KYOMZW711)
• Pre-painted Audi R8 LMS body with pre-applied decals

Includes:

• (1) Factory Assembled MR-04 Chassis
• (1) Pre-Painted Audi R8 LMS Body
• (1) Perfex KT-531P 2.4GHz Transmitter
• (1) Front Tread Adjustment Parts Set
• (4) Pinion Gears (6T, 7T, 8T, 9T)
• (1) Pinion Gear Tool
• (1) Wheel Wrench
• Product Manual

Needed To Complete:

• (4) AAA Batteries for Transmitter
• (4) AAA Batteries for Chassis

Specifications:

*Tech Note: Ready-to-Run models come equipped with all electronics and include the transmitter needed for use. Please check the “Needed To Complete” above to make sure you have everything you need to get out and enjoy your RC model.

**Tech Note: Syncro KT-531P transmitter uses FHSS 2.4GHz and is not compatible with existing ASF, MHS, or FHS 2.4GHz systems.

Manuals:

User Manual

This product was added to our catalog on May 6, 2025

Rob Hollen Verified Owner Saturday, Aug 23 2025 (5 weeks ago) Kyosho MR-04 RWD Mini-Z ReadySet w/Audi R8 LMS Body (White) Nice car body style really cool wish the servo didn’t make the noise all the time also could come with better bearing other than that runs really good after a few upgrades will run great in would have no problems buying another one Matt O Verified Owner Saturday, Jul 19 2025 (2 months ago) Kyosho MR-04 RWD Mini-Z ReadySet w/Audi R8 LMS Body (White) Lots of fun, and the scale is amazing. The stock tires aren’t the greatest on hardwood floors but hop up parts are cheap and easy to install. This thing rips but I do prefer the AWD versions. 0 of 1 customers found this review helpful. View all reviews