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 120.6mm
– Width 67~76mm
– Height 35mm
– Motor Mount MM2
– Wheelbase 94.0mm(L)
– Tread(F/R)58.5~65.0mm/61.5~65.0mm
– Tires (F/R) φ25×8.5mm(別売)/φ25×8.5〜11mm(別売)
– Gear Ratio 7.3、6.3、5.5、4.9:1
– Weight 138.0g (ボディ/タイヤ・ホイールは無し)
– Motor KYOSHO SPEED HOUSE / XSPEED 41 (KV4100)
Kit Contents
<Readyset Contents>
– MR-04EVO2-N-MM2 Factory assembled chassis with KYOSHO SPEED HOUSE KV4100 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's Kyosho's flagship 1/28th chassis requiring assembly and tuning knowledge to get the best from its adjustable suspension and wheelbase settings.
This is a chassis kit, so you receive the assembled frame, suspension components, sensored brushless motor, and ball differential. You'll need to source a compatible body, transmitter, receiver, battery, and charger separately.
This is a 1/28th scale model, making it a compact mini touring car ideal for indoor tracks and small spaces. It's significantly smaller than 1/10th or 1/16th scale cars.
The MR04 Evo2 features a sensored brushless motor with a 4100kv rating. Higher kv numbers mean higher RPM; this spec provides a balance of speed and torque suited to 1/28th touring car racing.
Yes. The chassis offers adjustable wheelbase settings, switchable narrow and wide tread options via interchangeable front plates, plus a redesigned steering program with precision tuning via the exclusive I.C.S. software for various setup configurations.

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