Kyosho 32799 MINI-Z MR-03EVO Chassis Set W-MM/8500KV

W-MM configured chassis equipped with a high-performance 8500KV motor, EVO chassis set is the perfect step up from the Readyset.

First released in December 2018 the MR-03EVO series delivered amazingly fast processing speed and featured a separate receiver board that provided the flexibility of transmitter choice. Two years after its stunning debut, the MR-03 EVO lineup has been strengthened with a race-based chassis. A 8500KV motor is combined with a standard specification chassis that you can customize to your liking with various optional parts available.While retaining the full bearing specifications and Ball Diff Set II, align the base chassis with the new standard speed range and open a wider group of users. From the compatible receiver units : RA-40 (EX-6R / EX-II / EX-RR/EX-LDT); RA-41 (KT-531P / KT-432PT); RA-42 (Futaba T7PX / T7XC / T4PM), and RA-43 (Flysky Noble NB4), the RA-41 provides the optimal step-up from the Readyset. Perhaps the MR-03EVO chassis set’s greatest advantage is that it can also be combined with a brushed motor (No.MZ9E, sold separately) to adapt to an even wider range of driving conditions.

?First MINI-Z MR-03 Chassis Set that adopts separate ESC and receiver design.
?Includes new KYOSHO SPEED HOUSE XSPEED 85 brushless motor (8500KV).
?I.C.S manager features detailed steering and throttle parameter adjustment, as well as switching between brushless and brushed modes.
?Powered by independent CPUs for ESC and receiver, increased internal processing speed contributes to precision steering and throttle control.
?Equipped with ball bearings and Ball Diff Set II. *Newly designed separate receiver cover and front upper arm mount make tread adjustment easier. *Compatible with optional parts for the MR-03 chassis.


Based on the MR-03VE PRO chassis, newly designed separate receiver cover and front upper arm mount make tread adjustment easier.
Receiver unit are planned for KYOSHO, KO, FUTABA and Flysky transmitters and can be attached/detached by removing receiver cover from the upper chassis.

Equipped with Ball Diff Set II that reduces weight of aluminum parts on the spur gear side and optimizes balance on the hub side. This is a must-have item and is used often in competition-level racing.


Equipped with KYOSHO SPEED HOUSE XSPEED85 brushless motor with KV (revolutions per 1V of battery voltage) 8500. This user-friendly high-speed type motor produces more than enough power and comes with 4 pinion gear types, from 6T-9T.

 Kit Contents
MR-03W-MM Factory assembled chassis with KYOSHO SPEED HOUSE XSPEED 85 KV8500 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
Receiver unit
Transmitter compatible with receiver unit
Auto Scale Collection (body set, wheels, tires)
AAA x 4 alkaline batteries or Ni-MH batteries for chassis
Batteries for transmitter

Chassis Technical Data
Length                    123.5mm
Width                      70-76mm
Height                     35mm
Wheelbase             98.0mm (L)
Tread                      F:61.5-65.0mm/R:61.5-65.0mm
Motor Mount           MM
Tires                       (F/R) 25×8.5mm (sold separately)/25×8.5-11mm (sold separately)
Gear Ratio              7.3, 6.3, 5.5, 4.9:1
Weight                    135g (approx.)
Motor                      KYOSHO SPEED HOUSE (XSPEED 85) KV8500