Kyosho Mini-Z MR04 RWD Corvette C8-R Chrome 20th Anni (W-Mm/Kt531p)
Key Specs
About this product
Description
Latest high-performance MR-04 chassis
Now the standard MINI-Z RWD model!
Enjoy the full experience of high-performance R/C car racing right out of the box; just insert batteries into the car and transmitter. This is the simplicity of Kyosho Readyset packages. The small scale of the MINI-Z Racer is ideal for driving indoors and for people just becoming familiar with R/C cars. This MINI-Z RWD Readyset includes a renewed 2-wheel drive chassis at its core. Previous Readyset packages incorporated the 3rd generation MR-03 chassis, but the new RWD Readyset includes the 4th generation MR-04 chassis that was first released in 2023. While retaining some basic elements of the MR-03 design, the new MR-04 demonstrated its lower center of gravity and remodeled steering design with blistering speed and excellent handling in the top-of-the-line EVO2 debut model. The MR-04 chassis is mounted with R/C system and features a completed body finished to display model standard. This Readyset includes the same standard MR-04 chassis as other high-end MR-04 models and includes user-friendly 130-class brushed motor and the reliable Syncro KT-531P pistol grip transmitter. Just insert 4 x AAA alkaline batteries into both the car and the transmitter, and you’re ready for the fun to begin. High-performance comes straight from the standard setup, but you can tune up for elite-level performance with a wide range of MINI-Z optional parts. With its dynamic maneuverability display model finish, the updated MR-04 chassis takes the authentic R/C experience to a higher level.
– Authentic EP (electric) small scale R/C car that can be driven indoors.
– Readyset package includes fully assembled chassis, body and transmitter.
– Includes ultra reliable multi-function Syncro KT-531P transmitter.
– Features the MR-04 chassis, a major evolution from the previous MR-03 model.
– Includes high-quality painted body with decals applied, finished to display model standard.
– Geared differential (gear diff) delivers smooth cornering.
– Full ball bearing specifications
– Can be fitted with an optional gyro unit (MZW711) for even easier control. Gyro sensitivity can be adjusted using the volume on the chassis.
– Compatible with wide range of MINI-Z Racer optional parts so you can enjoy tuning and enhancing your model.
While retaining the best aspects of the MR-03, the lower center of gravity of the new MR-04 delivers significant performance improvements. The easier control of the MR-04 makes it an ideal introduction to R/C cars.
New front knuckles with integrated kingpins reduce scrub by 1.5mm on each side compared to the MR-03, realizing sharper and more linear control. The change to 3mm inner diameter ball bearings also reduces rotational resistance.
Front suspension dynamically aligns the camber angle with movement of the upper arm to maintain optimal tire contact during cornering. Revised caster angle also delivers improved steering response.
The car is powered by four AAA alkaline or rechargeable nickel-metal hydride batteries. The batteries are mounted lower than the MR-03, lowering the center of gravity of the entire chassis to deliver improved cornering stability and straight-line handling.
The rear suspension uses a coil spring damper to cushion shocks from the road surface and improve driving stability. It can also be upgraded to an optional oil-filled shock absorber.
Flexibility of the T-bar rear suspension plate that holds the entire rear pod, including the motor and rear axle, produces excellent suspension effect. Optional parts are also available in FRP and carbon.
In 2025, All axles are equipped with low rotational resistance ball bearings as standard. The same size ball bearings are used for both front and rear for spare parts efficiency.
When changing from the standard body, a parts set is included to change the front tread (vehicle width) to match the non-standard body to be installed. Rear tread can be changed by changing the wheel offset.
Includes Syncro KT-531P transmitter with a steering wheel that mimics the steering wheel of a real car and pistol-grip throttle (speed control). Adjust the neutral position of steering and throttle with trims, as well as steering angle with dual rate adjustment. It is also possible to operate in training mode with a reduced vehicle speed (training mode is the default setting).
Technical Data
<Technical Data>
– Length 173.0mm
– Width 78.0mm
– Height 45.0mm
– Chassis MR-04W-MM
– Wheelbase 98.0mm (LL)
– Tread F:67.5mm R:65.0mm
– Front Wheel Offset Narrow +3.0mm
– Rear Wheel Offset Wide +3.0mm
– Weight 169g
– R/C System Syncro KT-531P
Kit Contents
<Readyset Contents>
– Factory assembled chassis
– Pre-painted body, complete with markings
– 2.4GHz Perfex KT-531P 2.4GHz transmitter
– Front tread adjustment parts set
– Pinion gears 6T, 7T, 8T, 9T
– Spare nuts
– Wheel wrench
– Pinion gear tool
– Tires, wheels
Required For Operation
<Required for Operation>
– AAA-size alkaline batteries x 4 for chassis.
– AAA-size alkaline batteries x 4 or Ni-MH batteries x 4 for transmitter
What's in the box
- P transmitter.
- chassis, a major evolution from the previous MR-03
Frequently Asked Questions
Yes, this is an ideal starter model. It's a Ready to Run (RTR) package that requires only battery insertion to operate, and the 1/28th scale makes it perfect for indoor use and learning RC fundamentals without complexity.
The car and transmitter each require 4 x AAA alkaline batteries. The product description does not specify whether batteries are included in the box, so check your order confirmation or contact us to confirm.
The Readyset package includes the fully assembled MR-04 RWD chassis, a high-quality painted Corvette C8-R body with decals applied to display model standard, and the Syncro KT-531P pistol grip transmitter. No additional assembly is needed.
At 1/28th scale, this is a very small car ideal for indoor driving in homes, offices, or small spaces. Its compact size makes it perfect for those without access to outdoor tracks or large areas.
The fourth-generation MR-04 chassis features a lower centre of gravity and remodelled steering design for superior handling compared to the previous MR-03, whilst maintaining the reliable brushed motor performance expected from a Readyset package.
Compatible Parts

Team Associated Rc10 Chassis, Gold
Maverick RC CARBURETTOR SPACER SET (BLACKOUT)
Kyosho Autoscale Mini-Z Nissan Fairlady 240z-L Mettalic Blue (Ma020)
Flat Head Tp Screws M4x20mm (10) Kyosho
Team Associated Wc23 T-Shirt Black (L)
Kyosho 1:10 O-Ring Set
Front Wheels 10 Holes White 2.2 (2) Kyosho Ep Ultima Sb Dunemaster"
Kyosho Hoodie Sweatshirt K24 Red - S
Front Body Mount Toyota Yaris GRMN Circuit Mini-Z
Rear Shock Stay Kyosho Ep Lazer Sb Dirtcross
Autoscale Mini-Z Skyline 2000gt-R Kpcg10 Racing'72 Red no.6 (Ma020)
Hd Coating Rear Shock Case Inferno Mp9-Mp10 Mp11 (2) Ms=50
Kyosho Fazer Fzd2 Suspension Mount
6.8mm Hard Pivot Ball - Kyosho mp7.5 (3)
Servo Saver Shaft Set Kyosho Nitro Tracker + DBX (Tr133)
Team Associated Tc8 Shock Cap Bottoms
Lw Wheel Nuts (4) Kyosho Ep Fantom 4wd Ext CRC-Ii
Mini-Z 4X4 MX-01 Jeep Wrangler Rubicon Firecracker Red (KT531P)
2nd Hard Gear (0.8M - 21 Teeth) Kyosho v-One RRR
Rear Tiller Unit Set Kyosho Blizzard
Differential Gear Shaft Kyosho Kb10 Series (4)
Kyosho Fazer FZ02 1:10 Mazda Savanna GT 1972 Body Set - Green
Front Suspension Arm Set Kyosho Fw05-Fw06 (4)
Kyosho 1:18 Toyota Land Cruiser 40 Van (BJ42V) 1980 yellow
Knuckle Arm Set Camber 3.0 Mini-Z AWD Kyosho
Drive Bevel Gear (10t Inferno St-Rr - Psycho Kruiser 2.0
Short Damper Bush Inferno MP10 (2pcs) Lightweight (For IFW631-632)
Kyosho Vintage 2wd Buggy Badge (5pcs)
Screw Shafts 2x11xm4 Fazer-Rage 2.0 Kyosho (4)
E-Ring 7.0 Mm (6) Kyosho
Starter Box LW Koswork Buggy-Gt (2x775) Alu
Batterie Cover Exzes
52t Pulley Set for Koswork Kos05201 Starter Box
Kyosho Rb5-Rb6-Rb7 4.8mm Ball Stud High Mount Type (4)
Maverick RC CAP HEAD SCREW M5X65MM 2 PCS ME - 432
Washers m3x7x0.5mm (10) Kyosho
Kyosho Turbo Optima Front Suspension Plate Set (2) Gold
Team Associated Apex 2 Sport Datsun 620 Decal Sheet
Kyosho Autoscale Mini-Z Nissan Silvia S15 White W/Gt Wing (Ma020)
Kyosho Mini-Z Lm High-Grip Tyres 30 Shore (4) - Wide
Servo Saver Set Kyosho Fazer-Rage 2.0
Kyosho Fazer FZ02 1:10 Toyota Supra A80 Body Set - Color T1
HPI Racing Crankshaft (Sg Type/G3.0)
E-Ring 4.0mm (10) Kyosho
Kyosho Scorpion 2014 Satin Chromed Front Wheel 2.2 Inches (2)
Knuckle Arm Collar Kyosho Inferno Mp9-Mp10 (2) Long
Upper Suspension Arm Set Inferno Mp10 Mp11
Ec3 Connectors - 3 Pairs
Sp Front Lower Suspension Holder Kyosho Inferno Mp10 - Fr
Front Side Plate Set Kyosho Optima Pro (2) Gun Metal
Pivot ball joints 5.8x3.0x12.5mm (8) Kyosho Scorpion 2014
Kyosho Fazer FZD2 HD Crank Arms Post
Clutch Roller Bearing Ld70 Kyosho
Kyosho Hanging-on Racer Main Frame and Gearbox Set (Yzr500/Black)
Pinion Gear 21 Teeth Kyosho 1:8 (Mod 0.8-D5.0) Steel
Damper Piston 8x1.2mm (2) Big Shock
Bodyshell Nissan Skyline GT-R R34 Mini-Z + 4WD Rims (White Body)
Front Lower Suspension Holder Kyosho Inferno Mp9 - Front
Bodyshell Kyosho 1:8 Inferno NEO 3.0 Type 5 (Red)
Team Associated RC8B4.1E Team Kit 1/8 Electric Buggy
Servo Saver Assembly Kyosho Mini-Z FWD
Big Shock Springs L=44mm (2) 3.4 Kyosho Ultima Sb Dirtmaster
Rear Lower Suspension Arm Kyosho Inferno MP10 (2) Hard
Kyosho T-Shirt Spring 26 Orange - L
Koswork Classic Transmitter Bag (280x200x130mm)
Power Hd Servo Wh-80v1 Hv Alu Case Mg 80kg/0.17s (Large Scale)
Round Head Metallic Screws (M3x6mm (10) Kyosho
Kyosho Autoscale Mini-Z Toyota Gt-One Ts020 no.1 1999 (W-Lm)
Kyosho Ultima rb7.5 Carbon Rear Damper Stay
Flat Head Tp Screws m2.6x8mm (10) Kyosho
Charge Cable Ec5/Banana Plug
Mini-Z Awd Toyota Corolla Levin Ae86 White-Black (Ma020n-L/Kt531p)
Kyosho Scorpion 2014 Receiver Box - Black
Kyosho 1:64 Die Cast Collection Tyrrell P34/2 1977 No.4
KYOSHO 540 G-SERIES ELECTRIAL ENGINE 27x1
Front Shock Stay Kyosho EP Lazer SB DirtCross
Pinion Gear 18 Teeth Kyosho 1:8 (Mod 0.8-D5.0) Steel
Spur Gear 46t Kyosho Inferno mp7.5-neo
Servo Saver Mount Set Kyosho Scorpion 2014
Kyosho Fazer Fz02 Chevy Camaro Z28 1969 Type1-Blue 1:10 Readyset
WLtoys 284010 2.4G RC mini drift car
SCY 16103 Pro RC Buggy 4wd