Lightened stopper M2 SLIM

Precise holding and reduced weight for your 3/32" axles

The Lightweight M2 SLIM SC-1124B Stopper from Scaleauto is a fastening element specifically designed for 2.38 mm (3/32") axles. Its SLIM profile makes it a highly valued option in competition-oriented setups, where reducing rotating mass has a direct impact on the car's response.

Function and performance

Axle stoppers serve a critical function: to keep the various elements mounted on the rear axle —crown gears, tyres, bearings— in position, preventing lateral movement during the race. A poorly adjusted or excessively loose stopper can lead to loss of traction, noise, and premature wear.

The lightweight SLIM version from Scaleauto takes this component a step further: by reducing the material to the minimum necessary without compromising rigidity, a lightweight stopper is achieved that helps to decrease inertia on the axle. In competition setups, this reduction of non-motorised mass is one of the first steps in tuning.

Compatibility

• Axles of 2.38 mm — 3/32"
• Fastening using M2 screw
• Compatible with chassis and setups that use the 3/32" axle standard, common in Scaleauto preparations and in numerous competition chassis on the slot market

Assembly and preparation

The tightening of the M2 screw should be done with the appropriate tool, without over-tightening to avoid damaging the housing. It is advisable to periodically check that the stopper has not suffered micromovements after intense sessions, especially on tracks with sharp chicanes. It is recommended to clean the axle before assembly to ensure proper seating and to prevent lubricant residue from reducing the effectiveness of the fastening.

Common mistakes

• Over-tightening: can create stresses on the axle or deform the stopper, especially in lightweight versions with less material.
• Assembling without checking the position: before securing, ensure that the axle elements are correctly aligned; once the stopper is tightened, correcting the position requires disassembling everything.
• Confusing axle measurements: this stopper is exclusively for 2.38 mm / 3/32" axles. It is not suitable for 3 mm axles.

Frequently asked questions

What axle diameter is this stopper designed for?

Exclusively for 2.38 mm (3/32") axles, the most widely used standard in competitive slot preparations. It should not be used on 3 mm axles.

What advantage does the lightweight version offer over a conventional stopper?

By reducing mass in an area that rotates with the axle, rotational inertia is decreased. On technical tracks with many rhythm changes, this reduction in non-motorised weight can improve acceleration and braking response.

What screw do I need to tighten it?

The stopper uses fastening via M2 screw, so you will need an M2 hex (allen) wrench for its assembly and adjustment.

Is it compatible with chassis from other brands that use 3/32" axles?

Yes, as long as the chassis or setup uses 2.38 mm / 3/32" axles. Compatibility depends on the axle diameter, not the chassis brand.

How many stoppers are included in the package?

The manufacturer's information does not specify the number of units per package for this reference. We recommend checking the product description in-store or contacting us before placing an order if you need an exact quantity.

The Scaleauto SC-1124B is a lightweight SLIM-type axle stopper designed for 2.38 mm (3/32") axles with M2 screw locking. A precision slot car part ideal for competitive builds and club racing setups, helping to reduce rotating mass and improve drivetrain response. Compatible with all 3/32" axle configurations used across a wide range of slot car chassis.