Mosler EVO5 medium chassis

The EVO5 Medium chassis: the foundation that the Mosler MT900R deserves

The NSR1450 is the EVO5 chassis in a medium variant specifically designed for the NSR Mosler MT900R body. If you are looking to renew the base of your Mosler, whether due to wear, damage, or simply to optimise the setup with the latest improvements of the EVO5 platform, this is the component you need.

Main features

• EVO5 platform: the generation of NSR chassis with refined geometry for balanced weight distribution and more direct cornering response.
• Medium variant: intermediate hardness between the Soft and Hard chassis, aimed at circuits with a mix of fast and slow corners, and for drivers seeking a compromise between grip and agility.
• Direct compatibility: fits the NSR Mosler MT900R body without additional modifications.
• Material and finish: made from high-stiffness engineering plastic with the usual dimensional tolerance in NSR, ensuring precise assembly of all components.

Function and performance

A chassis in good condition is the starting point for any serious setup. Over time, impacts, heat generated by the motor, and continuous use can introduce small deformations that affect performance: the guide does not work at the correct depth, the rear axle loses parallelism, or the body does not sit evenly. Replacing the chassis with a new EVO5 unit is the most straightforward way to eliminate these variables and start from scratch.

The medium variant is the most versatile in the EVO5 range. It performs well on both SPORT track (Scaleauto, Slot.it) and UNIVERSAL track (Scalextric, Ninco), making it a solid choice for club use or mixed-format competitions.

Assembly and preparation

The chassis is supplied unassembled: rear axle, motor, crown gear, pinion, guide, and braid are transferred from the previous setup or replaced with NSR spare parts that best suit your configuration. NSR has a wide catalogue of compatible spare parts, making both direct replacement and component upgrades easy.

• Check the alignment of the rear axle before closing the assembly.
• Ensure that the guide is at the correct depth according to the type of track you will be using.
• If you are reusing the motor from the previous setup, it is a good time to check the condition of the braids and replace them if they show wear.

Ideal for…

• Drivers who want to restore the original performance of their Mosler MT900R after an accident or accumulated wear.
• Preparers who wish to explore different chassis configurations (Soft / Medium / Hard) to adjust the car's behaviour to different layouts.
• Enthusiasts who build their own slot from scratch combining NSR body and mechanics.

Frequently asked questions

Is this chassis compatible with other NSR bodies besides the Mosler MT900R?

It is specifically designed for the Mosler MT900R. Although the EVO5 platform shares philosophy with other NSR chassis, the body mounting geometry may vary between models, so we do not recommend assuming compatibility with other bodies without prior verification.

What is the difference between the Medium, Soft, and Hard chassis?

The difference lies in the stiffness of the material. The Soft offers more flexibility and greater grip on slow circuits or those with high lateral load. The Hard is stiffer, suitable for fast and smooth tracks. The Medium is the midpoint: versatile, suitable for most circuits, and the most common as a starting option in club competition.

Does the chassis include motor, axle, and other components?

No. The chassis is supplied as an independent part. All mechanical components (motor, axle, crown gear, pinion, guide, braids) must be assembled separately.

Is it suitable for official competition?

Yes, as long as your championship regulations allow the use of NSR EVO5 chassis. Check the rules of your competition to confirm that the Medium variant is homologated in the corresponding category.

Do I need special tools for assembly?

The assembly is standard for any NSR slot: appropriate screwdriver, crown gear wrench, and standard adjustment tools. No special tooling is required.

The NSR1450 is the EVO5 Medium chassis specifically designed for the NSR Mosler MT900R body. A direct replacement or upgrade option for slot car racers looking to restore or optimise their car's performance. Compatible with standard NSR components including motor, rear axle, inline or sidewinder motor configurations, and all NSR guide and braid assemblies. Ideal for club racing on both Universal and Sport track systems.