As the first full model change in 14 years, the new MR-04EVO2 not only elevates competitive performance but also enhances the pure joy of driving. 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.
New Front Suspension
While the 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.
New Front Knuckle
The front knuckle design features an 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.
Ball Bearings
All 7 ball bearings are 3mm internal diameter for lower rotational resistance to minimize friction loss.
Scrub Radius
The offset of the kingpin relative to the wheel (scrub) is 1.5mm shorter on one side compared to the MR-03 for improved responsiveness to driver control inputs and suppression of wheelbase changes during cornering.
New Motor Mount & Damper Base Plate
Features new motor mount design for sensored brushless motors. Chassis height can be adjusted in three stages by changing the axle adjustment spacers to suit specific driving conditions. In addition, the revision of the friction damper base plate features points for wiring to be secured with nylon straps.
Low Center of Gravity Layout
Lower mounting of the AAA batteries on the chassis realizes a lower center of gravity compared to the MR-03. In combination with the chassis shape, this improves stability through corners as well as enhancing speed and control.
New Brushless Motors
Sensored brushless motor provides more precise speed control compared to sensorless motors. The W-MM chassis is equipped with 8500KV or 5600KV, and the N-MM2 is equipped with 4100KV type. 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
These MR-04EVO2 chassis sets are expected to arrive at Houston RC in late Dec/early January, in limited quantity. To ensure you get a first edition (60th Anniversary), we would recommend preordering them.
