3D Chassis NFS (Bicomp.), Mosler MT900 (Bench/SLOT.IT)

NFS Line by 3DSRP: Bicomponent Chassis for the NSR Mosler MT900

The SRP-NFS03 is the 3D chassis developed by 3DSRP within its NFS Line, designed to maximise the performance of the most popular high-performance bodies in competitive slot racing. In this case, the recipient is the iconic NSR Mosler MT900, a body that already has a long history of victories on club tracks and federated championships.

Bicomponent Technology: Why It Makes a Difference

The core of this chassis is its material: a bicomponent polymer applied using FDM 3D printing. This composition combines two properties that typically compete with each other —structural rigidity and controlled flexibility— distributing them strategically throughout the chassis geometry. The result is a piece that is significantly lighter than standard resin or injected plastic versions, with an elastic behaviour calibrated to generate mechanical grip without the need for ballast or suspension adjustments.

Reducing non-sprung mass improves response to surface changes and curb handling, something that competition tuners particularly appreciate on tracks with technical profiles.

Compatibility and Assembly

The chassis is specifically designed for:

• Body: NSR Mosler MT900.
• Motor Pod: Slot.it motor pod systems, allowing for precise tilting and fully adjustable mechanical configuration.

The integration with the Slot.it motor pod provides the tuner access to one of the most comprehensive ecosystems of parts on the market: axle length variants, different motor positions, and a wide selection of pinions and crown gears. All this without having to modify the chassis or use additional adapters.

On-Track Performance

The geometry of the NFS Line is designed to reduce inertia during braking-acceleration transitions and improve corner stability. The bicomponent flexibility acts as a passive absorption system: the chassis works with the track rather than against it, keeping all four wheels in contact and maximising power transfer to the rail.

For those competing on tracks with tight corners or uneven surfaces, this controlled elastic behaviour provides a tangible advantage over stiffer chassis.

Assembly and Preparation

As a piece made from FDM 3D printing, it allows for fine-tuning with fine-grit sandpaper if contact areas need to be polished. It is recommended to check axle alignment before the first run and adjust the guide height according to the type of track used. The Slot.it motor pod is mounted following the standard procedure for that platform, without modifications.

Ideal for…

• Club competitors using the NSR Mosler MT900 body who want to reduce weight without compromising handling.
• Tuners already working with the Slot.it motor pod ecosystem seeking direct compatibility.
• Enthusiasts looking to explore the benefits of FDM 3D printing applied to competitive slot racing.

Points to Consider

• This chassis is specific to the NSR Mosler MT900 body. It is not interchangeable with other bodies from the same brand.
• The motor pod is not included: a compatible Slot.it motor pod is required.
• As a competition component, the recommended preparation level is intermediate-advanced.

Frequently Asked Questions

Which body is this chassis compatible with?

It is designed exclusively for the NSR Mosler MT900 body. It should not be used with other bodies, even from the same brand, as the mounting dimensions and geometry are specific to this model.

What type of motor pod do I need?

The SRP-NFS03 chassis is optimised for Slot.it motor pods. Please refer to Slot.it documentation to choose the motor pod variant that best fits your motor and transmission configuration.

What advantage does the bicomponent polymer offer over an injected plastic chassis?

The bicomponent allows for the combination of areas with higher rigidity (where dimensional precision is needed) with more flexible areas (where mechanical grip is sought). An injected plastic chassis has uniform properties throughout its section, limiting that adaptability. Additionally, FDM printing allows for internal geometries that reduce weight without sacrificing structural section.

Is assembly straightforward for a tuner with basic experience?

The assembly follows the standard procedures of the Slot.it ecosystem, so anyone who has worked with motor pods from that brand will not find it difficult. For beginners, it is recommended to have guidance from someone with experience in the initial assembly to ensure correct alignment.

Do I need special tools to assemble or adjust this chassis?

No special tools are required beyond the usual ones for slot preparation: precision screwdrivers, an Allen key for the Slot.it motor pod screws, and optionally, fine-grit sandpaper to polish contact surfaces if necessary.

Can I use this chassis on Scalextric or Ninco track?

The compatibility of the chassis with the track depends on the guide and braids you mount, not the chassis itself. The SRP-NFS03 is compatible with standard 1/32 slot track systems as long as the appropriate guide for each system is used.

The 3DSRP SRP-NFS03 is a high-performance 3D-printed FDM chassis for the NSR Mosler MT900 body, part of the exclusive NFS Line. Its bicomponent polymer technology delivers exceptional weight reduction and precisely calibrated mechanical flex, providing outstanding grip on technical layouts. Designed for direct integration with Slot.it motor pods, it offers full mechanical customisation for competitive 1/32 slot racing. A top choice for club racers and advanced builders looking to push their NSR Mosler setup to the next level with cutting-edge additive manufacturing materials.