Mosler EVO5 extra light chassis

The EVO5 Extra Light chassis takes the Mosler MT900R to another level of performance

The NSR1448 is the replacement and upgrade chassis from the EVO5 Extra Light range, specifically designed to fit the body of the Mosler MT900R from NSR. NSR's EVO5 philosophy translates into a refined geometry after years of evolution, and the Extra Light version takes it a step further by reducing weight to the bare minimum necessary to gain agility without sacrificing the structural rigidity required for a well-prepared slot car.

Main features

• Extra Light version: lower density material that reduces the total weight of the assembly and improves the power-to-weight ratio of the car.
• EVO5 platform: proven design from NSR's competition range, with optimised mass distribution for stability in corners.
• Specific compatibility: designed for the body of the NSR Mosler MT900R.
• Prepared for Sidewinder motor: the EVO5 chassis accepts a motor configuration parallel to the rear axle, the Sidewinder system, which keeps the centre of gravity low and favours rear traction.
• Easy access and maintenance: NSR's modular construction allows for the exchange of components (axles, mounts, crown gears) without specialised tools.

Function and performance

A chassis in good condition is the foundation upon which any setup rests. Over time, chassis accumulate micro-cracks from impacts, deform from heat, or simply need to test different configurations. The EVO5 Extra Light allows starting from scratch with a new piece, ensuring factory geometry and taking advantage of the weight benefit of this version compared to the standard chassis.

The weight reduction provided by the Extra Light variant is particularly noticeable in acceleration from slow corners and in response to the controller: the car reacts quicker and is easier to handle on technical circuits with many chicanes. For drivers looking to adjust the setup without touching the electronics or motor, replacing the chassis is one of the most effective changes.

Compatibility and assembly

This chassis is exclusively designed for the body of the Mosler MT900R from NSR. It is not a universal chassis; the geometry of the mounts and the dimensions of the wheelbase are tailored to that specific body. When assembling, it is advisable to carefully transfer all components (motor, mount, rear axle, guide and braids) to avoid forcing the anchor points of the new chassis.

NSR offers a very comprehensive spare parts catalogue that allows this chassis to be combined with different motors, crown gears, pinions, and tyres depending on the type of track and championship, making it a very versatile base for preparation.

Ideal for…

• Club drivers who want to renew the chassis of their Mosler MT900R without changing the body.
• Preparers looking for the lightest possible version as a starting point.
• Enthusiasts who have suffered a strong impact and need to replace the chassis with a quality original NSR part.

Frequently asked questions

Is this chassis compatible with all NSR bodies?

No. The NSR1448 is specifically designed for the body of the NSR Mosler MT900R. Each EVO5 chassis has geometry adapted to the corresponding body model.

What is the difference between the standard EVO5 and the EVO5 Extra Light?

The Extra Light variant uses a lower density material, which reduces the weight of the chassis. The result is a more agile car with better response, particularly noticeable in acceleration and in lines with many slow corners.

What motor configuration does this chassis accept?

The NSR EVO5 chassis is prepared for Sidewinder configuration, meaning the motor is placed parallel to the rear axle (transversely). This arrangement keeps the centre of gravity low and favours traction.

Can I reuse components from my previous chassis?

Yes. The motor, mount, rear axle, guide, and braids are perfectly transferable to the new chassis, as long as they are in good condition. NSR has maintained consistency in its mounting systems across the different EVO generations.

What type of track is the car mounted on this chassis compatible with?

As a standard NSR slot car, it is compatible with universal track (Scalextric, Ninco) and Sport track (Scaleauto, Slot.it), depending on the guide and braids installed.

The NSR1448 EVO5 Extra Light chassis is a purpose-built replacement and upgrade part for the NSR Mosler MT900R slot car. Designed for competitive slot car racing, this lightweight chassis reduces overall car weight, improving acceleration and cornering response. Compatible with NSR's full range of spare parts — motors, axles, gears and guide blades — it offers a reliable foundation for club racing setups. A must-have for NSR Mosler MT900R owners looking to refresh or upgrade their build with genuine NSR components.