Master Speed MS2.1 Steel Chassis Specification Assembly Kit

　The world’s top-tier competition touring car reaches new heights. Specifications derived from real-world racing data bring a brilliant evolution to the speed category.

　The front suspension geometry delivers aggressive handling while reducing the burden on the driver, leading to a relative improvement in lap times. The front suspension leverage ratio is now selectable, allowing you to adjust the machine's cornering performance to suit road conditions and determine the machine's level of aggression in combination with tire choices. The shock components have also been refined in detail for a lower center of gravity, and the mounting angles have been adjusted to match the lengthened front suspension arms, resulting in a perfectly refined total balance.

　The steel chassis specification achieves an overwhelmingly low center of gravity. Even on high-grip surfaces common in racing scenarios, the car is capable of cornering as if it were suctioned to the track.

NEW Parts

■ 1.2mm thick Steel Main Chassis
■ Graphite Front Suspension Arms (1mm longer)
■ Graphite Front Shock Tower
■ Aluminum Front Lower Shock Mount
■ Aluminum Rear Upper Shock Mount
■ Front Stabilizer Wire
■ Aluminum Motor Mount
■ Aluminum Main Drive Pulley
■ Shock Caps/Shock Ends
■ Shock Shafts (18mm)
■ Shock Cap Balls (Φ4.8mm)

※The photo is an assembly example. The kit does not include a 2-channel radio set (transmitter, receiver, speed controller, servo), battery (Li-po 2-cell), charger, motor, pinion gear, 1/10 touring car tires/wheels, 1/10 touring car body, polycarbonate paint, etc. Please purchase these separately.

　The upper arms are a fully adjustable A-arm type. Camber and caster can be varied, allowing you to fine-tune the steering feel to your preference.

　The shock mounting positions have been optimized to match the changes in shock length and suspension arm length.

　The screws inserted from the bottom of the chassis are new 120-degree tapered flat-head screws matched to the thickness of the plate. Designed to be used with a 2.0mm socket wrench, they combine with high screw precision to ensure secure part fixation.

　The servo mount retains the style of securing from the underside. Integrated with the bellcrank base, it is unaffected by chassis twist, ensuring neutral handling characteristics.

　The shock shafts have been shortened by 0.9mm, and the shock caps and resin parts have been newly designed to achieve a shorter shock length while maintaining cylinder capacity.

　The aluminum motor mount has also been newly designed. The motor position is 0.5mm higher than before, optimizing weight balance for both aluminum and steel chassis.

　Furthermore, the shaft holding the center pulley has been extended, bringing the bearing inside the pulley closer to the spur gear. This reduces the offset between the pulley and the spur gear, minimizing vibration and preventing gear damage.

　In the rear, the shock mount has been changed. The upper shock position has been adjusted to match the shock length.