Magnesium Wheels 15.8x9.75x1.5 0.8g

Slot.it Magnesium Wheels: 1/32 Competition Taken to the Limit of Lightness

Within the magnesium spare parts catalogue of Slot.it, these wheels with measurements 15.8 x 9.75 x 1.5 mm and a weight of 0.8 g per unit represent the brand's most direct effort to reduce unsprung mass in 1/32 competition slot cars. Less weight on the axle means the motor operates with less inertia: the acceleration response is more immediate and braking becomes significantly more controllable.

Function and Performance

Magnesium is, alongside titanium, one of the lightest structural materials available, and its use in slot wheels is not an aesthetic whim: it has a direct and measurable impact on the model's dynamics. By reducing the rotating weight on the rear axle, the tyre-wheel assembly accumulates less gyroscopic inertia, resulting in:

• More agile corner exits with less tendency to oversteer induced by the axle.
• Shorter and more progressive braking when lifting the throttle.
• Better motor response to sudden throttle changes in endurance races or high-speed sprints.

The precision machining of Slot.it ensures very tight concentricity: any imbalance in the wheel is amplified at high RPM and generates vibrations that degrade grip. With these wheels, that problem is practically eliminated.

Compatibility and Assembly

The measurements 15.8 mm outer diameter, 9.75 mm width, and 1.5 mm wheel width are what you need to verify before mounting any tyre. The attachment to the axle is done, as is customary in the Slot.it range, via an M2 metric screw. It is essential to ensure that the screw is tightly fastened and that the steel axle is free of grease before assembly to avoid play that compromises the wheel-axle connection.

Check the tyre compatibility chart on the official Slot.it website or in the Evotech configurator to choose the rubber profile most suitable for these measurements and the chassis you will be mounting.

Assembly and Preparation

• Axle Cleaning: prior degreasing with a dry cloth or isopropyl alcohol before inserting the wheel.
• M2 Screw Tightening: without overdoing it; magnesium is light but the screw thread can fatigue if excessively tightened repeatedly.
• Balancing: although the machining is high precision, if you compete at an advanced level, it is advisable to check the static balance of the wheel-tyre assembly before each event.
• Tyre Adhesion: use specific slot tyre glue in minimal quantity to avoid adding unnecessary weight or unbalancing the assembly.

Common Mistakes

• Mounting a tyre with a width incompatible with the 9.75 mm of the wheel: the tyre will be bent at the sides or will not sit correctly on the track.
• Confusing the outer diameter of the wheel (15.8 mm) with the rolling diameter of the wheel+tyre assembly: the latter depends on the chosen rubber profile.
• Reusing the M2 screw after multiple disassemblies without inspecting the thread: a damaged screw can cause the wheel to slip on the axle during a race.

Ideal for…

Club racers and preparers looking to extract maximum performance from their Slot.it chassis in Sport track championships. They are also a common choice in GT or LMP car categories where regulations do not restrict the use of advanced materials and every tenth counts.

Frequently Asked Questions

How many wheels does the product include?

The product is supplied as a pair, that is, two wheels per reference SIW15809715Ma.

What scale are these wheels designed for?

They are designed for 1/32 scale slot cars, the most widespread competition standard in Sport track racing.

Are they compatible with any slot track?

The compatibility of these wheels depends on the chassis, not the type of track. Verify that the measurements 15.8 x 9.75 x 1.5 mm fit your Slot.it chassis and the tyre you want to mount.

What real advantage does magnesium have over aluminium in a slot wheel?

Magnesium is significantly lighter than aluminium, which reduces the rotating inertia of the axle. This translates into a more immediate motor response and a noticeable improvement in braking and acceleration dynamics, especially on tracks with many slow corners.

Do I need special tools to mount these wheels?

You only need a screwdriver or wrench suitable for the M2 screw. No special tools are required, although it is advisable to use a wheel mounting tool to ensure perpendicularity to the axle and avoid damaging the thread.

Can they be combined with tyres from other brands?

Yes, as long as the tyre measurements are compatible with the 15.8 mm diameter and 9.75 mm width of the wheel. Check the equivalences from the tyre manufacturer's specifications before mounting.

Slot.it magnesium wheels 15.8x9.75x1.5 mm, 0.8g ultra-lightweight rims for 1/32 slot cars, competition slot car parts, Sport track racing components, low unsprung weight slot wheels, Slot.it SIW15809715Ma, precision machined magnesium rims for club and pro racing.