Motor SC-25 Sprinter2 21500rpm, 0.23 Amp, 340 gr* cm,

The Scaleauto SC-25 Sprinter-2: a long-can motor designed for speed and durability

Within the Scaleauto motor catalogue, the SC-25 Sprinter-2 holds a clear position: it is the long-can reference aimed at those seeking measured and reliable performance on track. With 21,500 rpm, 340 gr*cm of torque, and a consumption of only 0.23 A, it offers a power-to-consumption ratio that makes it particularly interesting for both long sessions and club categories with motor restrictions.

Main features

• Speed: 21,500 rpm (at 12 V)
• Torque: 340 gr*cm
• Consumption: 0.23 A
• Can type: Long — 32.1 x 20.2 x 15.3 mm
• Preparation: Dynamically balanced and calibrated armature
• Magnetic force: 17.5 gr MPM / 12 gr UMS

Behaviour and performance on track

The dynamic balancing of the armature is one of the most noticeable aspects when running: vibrations at high revolutions are significantly reduced, resulting in a smoother ride, less wear on the drivetrain, and greater consistency from lap to lap. The power delivery is linear, without sharp peaks, which facilitates control on technical tracks with a lot of radius variation.

The magnetic force of 12 gr UMS adds a loading effect on the rear axle that stabilises the car in corners, especially on fast layouts where magnetic grip makes the difference between maintaining the trajectory or being thrown off. It is not a motor that seeks spectacle: it seeks efficiency.

Recommended applications

The SC-25 Sprinter-2 naturally fits into 1/32 long-can chassis. Its dimensions —32.1 x 20.2 x 15.3 mm— are compatible with the vast majority of long-can motor pods on the market. It is also used in 1/24 setups that seek an agile motor without sacrificing smooth operation.

It is a common choice in club categories with open or semi-closed motor regulations, where the balance between torque, maximum speed, and consumption is as important as raw power.

Usage recommendations

To get the most out of the Sprinter-2, it is advisable to check the condition of the braids and the pinion adjustment before each racing session. A clean assembly with no play in the pod is essential for the armature balancing to perform its function. Scaleauto recommends an initial run-in at low voltage to properly seat the internal components before demanding maximum performance.

Frequently asked questions

Is this motor suitable for club racing or just for recreational use?

It is perfectly valid for club racing. Its torque of 340 gr*cm and its 21,500 rpm place it in a range that many long-can category regulations consider. Always check the specific regulations of your championship before homologating it.

What is the difference between MPM and UMS measurements in magnetic force?

They are two distinct measurement methods for the motor's magnetic attraction force. The MPM (Magnetic Pull Measurement) system and the UMS (Universal Measurement System) use different reference conditions, so the same motor can give 17.5 gr in MPM and 12 gr in UMS. To compare motors, always use the same system.

Which chassis is the SC-25 Sprinter-2 compatible with?

Its long-can dimensions (32.1 x 20.2 x 15.3 mm) make it compatible with the vast majority of long-can motor pods on the market in 1/32 scale. It also adapts to 1/24 setups that use this motor format.

How long does it take to run in correctly from scratch?

Although it comes factory-prepared with a calibrated and balanced armature, it is advisable to perform a progressive run-in of a few minutes at reduced voltage (6-8 V) before pushing it to full performance. This helps seat the braids and optimises the motor's response in the long term.

Can I use this motor on Sport track and also on Scalextric track?

The motor itself is independent of the track system: what determines compatibility with the track is the guide and the power pickup of the chassis where it is mounted. The SC-25 Sprinter-2 is an internal component; its use on Sport track (Scaleauto, Slot.it) or universal track (Scalextric, Ninco) depends on the receiving chassis.

The Scaleauto SC-25 Sprinter-2 (ref. SC-0025C) is a long-can slot motor delivering 21,500 rpm, 340 gr*cm torque and a low current draw of 0.23 A at 12 V. Its dynamically balanced and calibrated armature ensures vibration-free performance at high revs, while the 12 gr UMS magnetic downforce adds rear-axle stability for aggressive cornering. With dimensions of 32.1 x 20.2 x 15.3 mm, it fits most long-can motor pods in 1/32 and 1/24 slot car applications, making it a reliable choice for club racing and competitive track use.