🏁 The Kyosho Mini-Z Racer MR-04EVO2 W-MM 8500KV is a high-performance chassis designed for demanding pilots and competition Mini-Z. As the successor to the MR-03, it features a thoroughly optimized design with an 8500KV XSPEED 85 sensored motor brushless, a lower center of gravity, an improved front suspension, and highly responsive EVO2 electronics. This updated model also features the stiffer Front Suspension Arm 2.0, delivering even greater precision and consistency on the On-road.
- MR-04EVO2 W-MM Chassis: an evolution of the famous MR-03 with a design optimized to improve performance and driving precision.
- brushless sensored motor: KYOSHO SPEED HOUSE XSPEED 85, 8500KV, offering performance suited for sports use and competition.
- Motor speed control: The latest version of the RC controller allows you to adjust the motor speed to comply with the regulations of various competition classes.
- ICS Settings: The ICS parameter manager allows you to adapt the motor’s operation to the limitations imposed by each class.
- Front Suspension Arms 2.0: This version features increased stiffness to improve front-end precision.
- Advanced front suspension: an upper-arm system designed to optimize camber changes during cornering.
- MA-030-type front steering knuckles: Their new shape improves camber stability.
- Optimized geometry: camber, caster, and track settings fine-tuned to achieve more linear handling.
- New MR-04 front springs: different spring rates are available separately to fine-tune chassis settings.
- Redesigned front pivot: integrated steering shaft and optimized alignment with the ball joint to ensure smooth movement while minimizing play.
- Low-friction bearings: The 7 ball bearings feature a 3 mm inner diameter to reduce rotational resistance and drivetrain losses.
- Lower center of gravity: The compartment for the four AAA batteries is positioned lower than on the MR-03 to improve cornering stability, speed through turns, and maneuverability.
- Redesigned chassis: Its shape has been completely adapted to the new, lower battery layout.
- Standard ball differential: compensates for the speed difference between the rear wheels when cornering and allows for controlled slippage under excessive load to optimize traction.
- Silver-anodized aluminum parts: a transparent silver finish that gives the chassis a particularly sleek appearance.
- Adjustable front track width: the front upper and lower control arms, along with the steering links, allow you to switch from a narrow to a wide configuration.
- Adjustable wheelbase: The chassis can be configured to accommodate compatible bodies.
- High-speed communication: The EVO2 system supports compatible modules and receivers from various manufacturers to significantly reduce latency.
- Latency with KO module in ADV mode: up to 0.99 ms.
- Latency with the Futaba module in EVO2 mode: up to 0.9 ms.
- By comparison, the latency of previous systems was reported to be between 2.6 and 3.0 ms.
- Total length: 124.5 mm.
- Total width: 72 to 76 mm.
- Total height: 31 mm.
- Motor mounting: MM.
- Wheelbase: 98.0 mm (LL).
- Front track width: 63.5 to 65.0 mm.
- Rear track width: 61.5 to 65.0 mm.
- Compatible front tires: Ø25 x 8.5 mm, sold separately.
- Compatible rear tires: Ø25 x 8.5 to 11 mm, sold separately.
- Available gear ratios: 7.3 / 6.3 / 5.5 / 4.9:1.
- Total weight: 135.5 g, excluding body, tires, and wheels.
- Motor: KYOSHO SPEED HOUSE XSPEED 85 brushless sensored 8500KV.
- Complete MR-04EVO2 W-MM chassis.
- SPEED HOUSE XSPEED 85 8500KV sensored motor brushless KYOSHO installed.
- Ball differential installed as standard.
- Complete kit of parts for adjusting the front track width.
- Gear 6-tooth motor.
- Gear 7-tooth motor.
- Gear 8-tooth motor.
- Gear 9-tooth motor.
- Wheel wrench.
- Gear removal tool.
- Spare wheel nuts.
To complete and use this Mini-Z MR-04EVO2 chassis, you’ll need:
- A transmitter compatible with the system in use.
- A EVO/EVO2-compatible receiver.
- 4 AAA batteries; NiMH rechargeable batteries are recommended for optimal performance.
- Batteries required to operate the transmitter.
- Mini-Z body compatible with the chassis configuration.
- Compatible wheels and tires, sold separately.
The Kyosho MR-04EVO2 W-MM 8500KV is primarily intended for experienced pilots Mini-Z seeking a high-end platform for track driving On-road and competition. Its wide range of adjustment options, low-latency EVO2 electronics, brushless sensored 8500KV motor, and highly advanced chassis allow for precise tuning of the car’s handling. It also serves as an excellent foundation for enthusiasts who want to build their own Mini-Z using their choice of body, wheels, and radio system.










