Mosler EVO5 Soft hard chassis

The EVO5 Soft Hard chassis takes the NSR Mosler MT900R to another level of performance

The Chassis Mosler EVO5 Soft Hard (NSR1451) is the official replacement and upgrade part from NSR for the Mosler MT900R. Designed under the brand's EVO5 philosophy, this chassis combines areas of different stiffness to optimise the car's dynamic behaviour on track, providing greater consistency from lap to lap.

Function and performance

The Soft Hard construction means that the chassis integrates areas of controlled flexibility (soft) along with zones of greater stiffness (hard). This balance allows the car to maintain contact from all four tyres with the track in corners, without sacrificing the necessary firmness in the central area for efficient power transfer. The result is greater stability in chicanes and a more predictable response to the throttle.

Compatibility

This chassis is specifically developed for the NSR Mosler MT900R. Being an original NSR product, the fit with the body, motor mount, and standard components is direct, with no need for additional modifications. NSR offers one of the most comprehensive spare parts catalogs in the slot market, making it easy to have all the necessary parts to prepare and maintain the car in optimal conditions.

Assembly and preparation

• The assembly is direct onto the body of the Mosler MT900R, respecting the original anchoring points.
• It is recommended to check the condition of the guide, braids, and tyres before installing the new chassis to make the most of the upgrade.
• Once assembled, it is advisable to check the lateral play of the rear axle and the height of the guide to ensure a balanced setup.

Ideal for…

This chassis is the natural choice for club racers who want to maximise the Mosler MT900R in GT category championships or for enthusiasts looking to restore original performance after wear or impact. The availability of original NSR spare parts ensures that the investment in car preparation has long-term continuity.

Common mistakes

• Not checking the alignment of the rear axle after assembly: a misaligned axle negates any advantage the new chassis provides.
• Reusing heavily worn tyres: the EVO5 chassis improves dynamics, but poor condition tyres will limit results.
• Not cleaning the contacts of the braids before assembly: poor electrical conduction directly affects motor response.

Frequently asked questions

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

We cannot confirm that. The manufacturer specifies it for the Mosler MT900R, so we recommend not assuming compatibility with other NSR bodies without prior verification.

What is the difference between a Soft Hard chassis and a standard chassis?

A standard chassis has uniform stiffness. The Soft Hard concept combines areas of different hardness within the same chassis, aiming for a more refined dynamic behaviour: greater grip at the front and more firmness at the rear for more efficient power transfer.

Do I need special tools for assembly?

No. The assembly follows the usual process for NSR chassis and does not require specific tools beyond the usual ones in the slot workshop: precision screwdrivers and, optionally, a guide height gauge.

What track systems is the Mosler MT900R compatible with using this chassis?

The NSR Mosler MT900R is equipped with a standard guide compatible with Scalextric and Ninco track (universal track). For Slot.it or Scaleauto track (Sport track), it may be necessary to change the guide for a specific one.

Can I use this chassis in official competition?

It depends on the regulations of the championship you are participating in. Being an original NSR replacement, it is usually allowed in categories that accept the Mosler MT900R model with standard parts or original replacements. Always check the regulations of your championship.

The NSR1451 EVO5 Soft Hard chassis is an official NSR replacement and upgrade part for the Mosler MT900R slot car. Its combined soft and hard flex zones deliver improved on-track stability, consistent lap times and better power transfer. A straightforward upgrade for club racers and GT category enthusiasts looking to get the most out of their NSR Mosler MT900R.

Information not found

Specific data regarding the exact flex angle of each zone of the chassis and the official weight of the part could not be verified. If you need this data for precise technical preparation, we recommend consulting it directly with the manufacturer or in specialised NSR forums.