February 9, 2026

RC Atomic MRX Ultra 1:28 2WD Competition Kit

1:28 specialist manufacturer RC Atomic has presented its new 2WD Link-less Competition kit the MRX Ultra.  The Hong Kong manufacturer’s third generation  of 2WD Link-less 2WD Pan Car they have made significant changes with the latest car.  The Ultra comes with a one-piece 7075 integrated chassis with the front bulkhead, central pivot mount, and rear guide rail all prefabricated into main chassis and offering perfect alignment of them.  This kit also allows users to choose between from the traditional horizontal battery and “inline vertical” battery configurations.  To further lower the centre of gravity of the car, they have relocated the mid damper to the rear and no more heavy weight sling over the battery.  They have also made a opening on the chassis to allow servo to sit lower.  New front suspension system allows you to finely adjust the roll centre and camber gain by adding shims to the pivot joint of the arms.

MRX Ultra Features
– Extremely low center of gravity, this car is probably having the lowest CG compared to all 2WD cars available on the market.
– New Front knuckle and arms allow us to choose between 2 front wheel axle positions without altering the wheelbase of the chassis.
– New front knuckle design also significantly reduced the scrub radius and offer higher mid corner speed.
– Front track width of the car is adjustable by adding shims to lower arm.
– 24mm wide (big block) battery compatible
– Caster Angle plate 1.0, 2.0 and 3.0 degree is provided as options.
– Servo compatibility: AGFRC A06CLS and its OEM
– Servo saver (available as option)
– Compatible with Auto-Scale ABS bodies and the side body mount height is adjustable by shims.
– Rear droop can be quickly adjusted by set screw on motor mount.

Source: RC Atomic [rcatomic.com]



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