AW RT4 Adjustable Offset Motor Mount LMP/GT

Anglewinder Precision for LMP and GT Bodies: the Scaleauto RT4 HARD Mount

The SC-6531HD is the HARD version of Scaleauto's RT4 motor mount, specifically designed for anglewinder configurations in LMP and GT body cars. Made from high-stiffness black injection-moulded plastic, this mount is intended for those seeking mechanical consistency and fine adjustment without compromising durability.

Main Features

• Motor Type: Anglewinder — the motor is positioned at an angle relative to the rear axle, a configuration highly valued in competition for its balance between centre of gravity and transmission.
• Motor Angle: 12°, fixed according to RT4 design.
• Material: Black injection-moulded plastic, HARD version — extremely rigid and resistant to torsion.
• Offset: Adjustable, allows fine-tuning of the motor position laterally to optimise cornering behaviour.
• Compatibility with Bearings: Suitable for ball bearings ø4.75 × 2.38 mm (not included) and for spherical bushings.
• Included Bearings: Brass bearings ø4.75 × 2.38 mm and spherical bushings.

Kit Contents

• RT4 HARD motor mount in black injection-moulded plastic.
• Mounting screws and springs.
• Brass bearings ø4.75 × 2.38 mm.
• Spherical bushings.
• Two rear supports for independent height adjustment: one for ball bearings and another for spherical bushings.
• Different chassis anchoring supports.

Compatibility

The RT4 mount is compatible with all long-can motors and Slot.it Flat motors, significantly expanding its usability across various setups. Thanks to the different anchoring supports included, it can be adapted to a wide variety of LMP and GT chassis.

To maximise the precision of this mount, it is recommended to complete it with ball bearings ø4.75 × 2.38 mm (not included in the kit).

Assembly and Preparation

The independent height adjustment via the two rear supports is one of the most valued aspects of this reference: it allows for precise adjustment of the motor-axle geometry, which makes a difference in timing sessions. The adjustable offset adds another tuning variable that club preparers will appreciate from the first test lap.

As it is the HARD version, the mount does not absorb flex — which in a well-calibrated anglewinder translates directly into consistent response and less variability lap after lap.

Ideal for…

• Preparers and competition drivers who mount LMP or GT bodies on their own chassis.
• Enthusiasts looking to explore the anglewinder configuration with maximum control over geometry.
• Setups with long-can or Slot.it Flat motors in high-performance projects.

Frequently Asked Questions

What is the difference between the HARD version and other versions of the RT4 mount?

The HARD version is made from a more rigid injection-moulded plastic, which eliminates flex in the mount during operation. This provides a more direct and predictable response, especially on tracks with high-speed corners.

Are ball bearings included?

No. The kit includes brass bearings ø4.75 × 2.38 mm and spherical bushings, but ball bearings ø4.75 × 2.38 mm must be purchased separately.

Is it compatible with any anglewinder motor?

The RT4 mount is compatible with all long-can motors and Slot.it Flat motors. For other motor cases, it is advisable to check the dimensions before assembly.

What are the two included rear supports for?

They allow for independent height adjustment of the assembly according to the type of bearing used: one is designed for ball bearings and the other for spherical bushings. This provides flexibility to fine-tune the geometry according to the preparer's preferences.

Can it be used on SPORT track and UNIVERSAL track?

The mount itself is independent of the track system: its compatibility depends on the chassis it is mounted on and the type of guide used. Please consult us if you have questions about a specific combination.

The Scaleauto SC-6531HD RT4 HARD adjustable offset anglewinder motor mount is a precision component for LMP and GT slot car builds. Compatible with all long-can motors and Slot.it Flat motors, it features a 12° motor angle, independent rear height adjustment for ball bearings or spherical bushings, and a rigid injection-moulded black plastic construction. A go-to choice for club racers and scratch builders looking for consistent anglewinder performance on Sport-system tracks.