Key Specs
About this product
Description
Full model upgrade for the top of the MINI-Z series!
Total balance takes performance to new heights
While retaining elements of the excellent MR-03 layout, the new MR-04EVO2 chassis achieves significant performance improvements with changes to the front suspension and a lower C of G that work in synergy with a sensored brushless motor. Both narrow and wide tread settings are available by changing the lower and upper plates on the front as well as the steering tie rod. Adjustable wheelbase allows chassis setting according to body type.
While camber angle is optimized during cornering with the swing of the current upper arm design, the front suspension uses the new kingpin-integrated knuckle to further improve camber stability. Geometric revision of caster and trail etc. delivers more linear maneuverability. New spec front springs for the MR-04 with different hardness are available as options.
Front knuckle design features integrated kingpin with optimized clearance with the kingpin ball for smoother operation. Ball bearings have been changed to 3mm internal diameter for lower rotational resistance.
All 7 ball bearings are 3mm internal diameter for lower rotational resistance to minimize friction loss.
New potentiometer delivers precision and durability with a completely redesigned steering program to realize the best response and accuracy in the history of the MINI-Z. The more precise steering control program allows various settings using the MR-04’s exclusive I.C.S. software.
Ball differential included as standard optimizes the rotational differences between left and right rear wheels when turning. Also provides moderate slip action to improve traction when excessive load is applied. Silver clear anodized finish to aluminum parts creates a formidable style to match performance.
The new unit also supports high-speed communication with various high-end transmitters and receivers to realize unprecedented control response. Achieves transmission speeds of 0.99ms with KO units (ADV mode) and 0.9ms with Futaba units (EVO2 mode). *Previously 2.6ms ~ 3.0ms
Technical Data
<Technical Data>
– Length 124.5mm
– Width 72~76mm
– Height 31mm
– Motor Mount MM
– Wheelbase 98.0mm (LL)
– Tread(F/R)63.5~65.0mm/61.5~65.0mm
– Tires (F/R) φ25×8.5mm (sold separately)/φ25×8.5〜11mm (sold separately)
– Gear Ratio 7.3、6.3、5.5、4.9:1
– Weight 135.5g (Body / tires / wheels not included.)
– Motor KYOSHO SPEED HOUSE XSPEED 56 (KV5600)
Kit Contents
<Readyset Contents>
– MR-04 EVO2-W-MM Factory assembled chassis with KYOSHO SPEED HOUSE KV5600 brushless motor
– Parts set for changing front tread
– 6T・7T・8T・9T Pinion gears
– Wheel wrench
– Tools for pinion gears
– Spare wheel nuts
Required For Operation
<Required for Operation>
– Transmitter
– Receiver unit (Compatible with EVO/EVO2)
– ASC
– AAA x 4 batteries for chassis
– Batteries for transmitter
Frequently Asked Questions
This is a kit designed for experienced drivers. It requires assembly and demands precision tuning to get the best from its advanced suspension geometry and adjustable settings. If you're new to RC, consider a Ready to Run model first.
The chassis features a sensored brushless motor rated at 5600kv. The listing does not specify which battery is included or recommended; check the manual or contact us for battery compatibility and charging specifications.
This is a chassis kit, so you receive the MR-04 Evo2 chassis with the brushless motor, suspension components, steering servo potentiometer, ball differential, and associated hardware. Body, battery, and transmitter/receiver are not included.
At 1/28th scale, this is a very compact touring car—roughly the size of a playing card. It's ideal for indoor tracks, tabletops, and tight outdoor spaces where larger RC cars won't fit.
Key upgrades include a revised front suspension with an integrated kingpin design for better camber stability, optimised caster and trail geometry for more linear handling, a lower centre of gravity, and a new steering program with improved precision and response. It also supports high-speed communication with high-end transmitters for faster control.

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