AW RT3 Evo Offset Motor Mount -1.00mm extra hard (black)

The Scaleauto RT3 Evo Anglewinder motor mount that takes rigidity to the extreme

Within the 1/32 Anglewinder spare parts range from Scaleauto, the RT3 Evo motor mount with a -1.00 mm offset and extra hard (black) compound is the reference chosen by builders who do not accept any compromise on rigidity. When motor power increases, the standard hardness cradle can yield microscopically under acceleration loads and corner vibrations; this black compound completely closes that door.

Function and performance

The -1.00 mm offset lowers the motor position relative to the rear axle. This geometric adjustment has a direct consequence on track behaviour: it brings more mass closer to the rail, increases magnetic effect, and improves stability during sharp direction changes. This is not a minor detail: in competition categories where cars run with high-power motors, tenths of a millimetre in geometry make measurable time differences.

The extra hard compound, identified by its black colour within the Scaleauto RT3 Evo range, minimises any residual twisting of the cradle during the most aggressive accelerations. The crown gear receives power without angular distortions, resulting in cleaner transmission and more uniform wear of the drivetrain.

Compatibility

This mount is designed for chassis compatible with the Scaleauto RT3 system in Anglewinder configuration for 1/32 scale. If you have doubts about whether it fits your specific chassis, consult the technical data sheet from Scaleauto or contact us before installation.

Installation and preparation

The installation follows the usual procedure for RT3 Evo mounts:

• Check the condition of the rear axle and bearings before mounting the new support.
• Ensure that the pinion and crown gear are correctly aligned after securing the cradle, especially with a negative offset that modifies the motor height.
• Tighten the fixing screws evenly to avoid introducing asymmetric stresses into the cradle.
• Perform a short run-in before demanding full power, to settle the motor position in the new mount.

Common errors

The most common mistake when changing the motor mount offset is not readjusting the mesh between pinion and crown gear. Lowering the motor position with the -1.00 mm offset changes the contact point, and excessive or insufficient mesh can generate noise, premature wear, or loss of efficiency in the transmission. Always check the mesh after any mount change.

Another point to watch is the compatibility of the mount's hardness with the type of track. On very abrasive tracks or with high-grip sport rail, an extra hard compound may be too rigid for cars with soft suspension setups; in that context, it is worth considering whether the extra hard fits with the rest of the chassis configuration.

Ideal for…

• 1/32 slot builders in competition looking to eliminate any source of flex in the motor cradle.
• GT, sport, or endurance categories where lap time consistency over a long run is crucial.
• Drivers who have already tried the standard offset and want to explore the additional step of lowering the motor by another millimetre.
• Scaleauto RT3 Evo chassis in Anglewinder configuration.

Frequently asked questions

What is the difference between the extra hard black compound and the softer compounds in the RT3 Evo range?

Scaleauto offers various hardness levels in its RT3 Evo mounts. Softer compounds better absorb track imperfections but yield slightly under high loads. The extra hard black virtually eliminates cradle deformation, which is ideal when the motor generates a lot of torque and the priority is clean transmission and stable geometry. The trade-off is that any irregularity in the chassis is transferred more faithfully to the rear end.

Is the -1.00 mm offset compatible with all Anglewinder motors?

The mount is designed for the Scaleauto RT3 Evo system. Compatibility with a specific motor depends on its casing dimensions. If your motor is compatible with the RT3 system, the -1.00 mm offset does not affect the motor's hold, only its vertical position relative to the rear axle. Check your motor specifications before combining extreme offsets.

Do I need to modify anything else on the chassis when installing this mount?

The most important thing is to readjust the mesh between pinion and crown gear, as the change in offset alters the transmission geometry. It is also advisable to verify that the guide and chassis height remain within the tolerances of your category's regulations, as lowering the motor may affect the minimum height of the car.

Can this mount be used on tracks with universal rail like Scalextric or Ninco?

The mount itself is independent of the type of rail. What changes when competing on universal rail versus sport rail is the level of available grip. With extra hard and -1.00 mm offset, magnetic effect is gained, which can be an advantage on any type of track; fine-tuning the rest of the setup will depend on the specific conditions of the track where you compete.

When should I replace the motor mount?

Visually inspect the mount after each intense competition session. Signs that it needs replacing include noticeable play in the motor or axle housings, visible micro-cracks in the plastic, or unexplained changes in the car's behaviour that cannot be resolved by readjusting the mesh or bearings.

The Scaleauto RT3 Evo Anglewinder motor mount with -1.00 mm offset and extra hard compound (black) is a precision slot car part for 1/32 scale competition. Designed to lower the motor position relative to the rear axle, it enhances magnet downforce, reduces unwanted flex under hard acceleration, and ensures clean power delivery to the crown gear. A key upgrade for competitive slot car builders running Scaleauto RT3 Evo chassis in Anglewinder configuration.