Shark 25000 180 Gr/cm 12V

The NSR Shark 25 EVO: power and torque in a short can motor for competitive slot racing

The NSR Shark 25 EVO (reference NSR3043) is one of the most valued motors in the NSR catalogue for those seeking a precise balance between top speed and torque. With 25,000 rpm and 180 g·cm of torque at 12V, it falls within the high-performance motor range, suitable for both club tracks and more demanding competitive setups.

Main features

• Nominal speed: 25,000 rpm at 12V
• Torque: 180 g·cm at 12V
• Format: Short can — compact design that facilitates integration into chassis with limited space
• Reference: NSR3043
• Brand: NSR (leading Italian manufacturer in competitive slot racing)

Recommended applications

The Shark 25 EVO is a versatile motor that adapts well to different mounting configurations, whether in a sidewinder (parallel to the rear axle), inline (longitudinal, in line with the car) or anglewinder (at an angle). Its short can size makes it particularly interesting for chassis that demand compactness without sacrificing torque and rpm.

It is a common choice in club categories where the use of NSR motors is regulated, and it fits well with chassis from the same brand as well as other chassis compatible with the mounting standard used by NSR.

Behaviour and performance

The 180 g·cm of torque provides very effective corner exit, especially on tracks with many slow and medium curves. The 25,000 rpm ensure it does not fall short on fast sections. The combination of both values makes it a motor with a very balanced profile, without the extremes of motors purely oriented towards top speed or raw torque.

Its construction, characteristic of the NSR Shark line, guarantees a predictable response to the throttle, which is appreciated both in recreational driving and in championship situations where consistency lap after lap makes the difference.

Usage recommendations

To get the most out of the Shark 25 EVO, it is advisable to adjust the gear ratio (pinion and crown gear) according to the layout: longer ratios on fast and long tracks, shorter on technical circuits with many curves. NSR offers a wide catalogue of compatible pinions and crown gears, making setup easier.

Regularly checking the braids and the condition of the collector extends the motor's lifespan and maintains stable performance. Being an NSR motor, the availability of spare parts and accessories from the brand is extensive, which is a real advantage over other options on the market.

Frequently asked questions

What is the difference between the short can and standard can formats in NSR motors?

The short can has a shorter casing than the standard can, allowing it to be mounted in chassis with less longitudinal space available. In terms of electrical performance, the difference depends on the specific winding of each model, not the size of the casing itself.

Is the NSR3043 suitable for universal track (Scalextric, Ninco)?

Yes, as long as the chassis it is mounted on is compatible with that type of track. The motor itself is not tied to a specific track system; it is the chassis and the guide of the car that determine compatibility with the track.

What gear ratio is recommended for this motor?

It depends on the layout and race conditions. As a starting point, ratios between 3.0:1 and 3.5:1 usually work well with motors in this range of rpm and torque. Ideally, it should be adjusted based on track testing.

Can the braids of this motor be changed?

Yes. NSR sells replacement braids compatible with its motors. Replacing them when they show wear is a common maintenance practice that helps maintain the efficiency of electrical transfer.

Is it valid for official competition in NSR categories?

The NSR3043 is part of the official NSR catalogue and is eligible in categories that allow motors from this range. It is advisable to always consult the specific regulations of the championship or club before homologating it for competition.

The NSR Shark 25 EVO motor (NSR3043) delivers 25,000 rpm and 180 g·cm torque at 12V in a short can format, making it a competitive choice for slot car racing enthusiasts. Compatible with sidewinder, inline and anglewinder configurations, this NSR motor is widely used in club racing and home track setups. High-performance slot car motor, NSR short can, 1/32 slot racing motor, NSR3043 replacement motor.