16.2 x 10 UFO wheel -R-

The Sloting Plus UFO -R- wheel takes the versatility of the UFO family to the next level

The 16.2 x 10 UFO -R- Wheel (reference SP023504) belongs to the UFO family of Sloting Plus, one of the most interesting offerings within the magnesium spare parts catalogue in 1/32 scale. Its design is conceived to provide the tuner with two distinct configurations according to track needs and driving style: with foam or without foam.

Technical specifications

• Material: magnesium
• Dimensions: 16.2 x 10 mm
• Weight: 1.08 g
• Fixing: M2.5 x 3 mm allen stud
• Contents of the bag: 2 wheels + 4 foams + 2 M2.5 x 3 studs

Function and performance

Magnesium is the reference material in slot racing wheels due to its excellent stiffness-to-weight ratio. At just 1.08 g per unit, the UFO -R- wheel minimizes unsprung mass and contributes to a more direct response in acceleration and braking.

The key differentiator of the UFO family is the ability to equip the wheel directly with the different foam compounds included in the bag. This allows for adjustment of damping and load transmission to the tyre based on the type of track — plastic or wood — without the need to modify the chassis or resort to external solutions.

Compatibility and assembly

The included M2.5 x 3 mm allen stud is the standard used in most 1/32 competition axles and hubs. Before assembly, it is advisable to verify that the car's axle accommodates this thread size to avoid play or excessive tightening that could compromise the concentricity of the wheel.

The -R- variant within the UFO family is designed for configurations seeking a more controlled behaviour. The choice between the -UNIVERSAL- version and the -R- will depend on the geometry of the car and the type of tyre to be mounted.

Assembly and preparation

• Screw the M2.5 x 3 stud into the axle using the appropriate allen key, without over-tightening to avoid damaging the hub.
• If you choose to mount the foam, fit it into the wheel's housing before placing the tyre.
• Check the concentricity with a dial gauge or, at least, by manually rotating the axle on a flat surface before mounting the tyre.
• If you do without the foam, the wheel functions as a conventional magnesium wheel with the slight advantage of its UFO geometry.

Common mistakes

• Over-tightening the stud: magnesium tolerates usage loads well, but excessive tightening can deform the hub and cause eccentricity.
• Mixing foams of different hardness on the same axle: if a symmetrical behaviour is desired, use foams of the same compound on both wheels of the same axle.
• Not checking concentricity: an off-centre wheel penalises grip and stability more than any difference in tyre compound.

Frequently asked questions

How many wheels does the bag include?

The bag contains 2 UFO -R- wheels, 4 foams, and 2 M2.5 x 3 mm studs.

What is the difference between the -UNIVERSAL- version and the -R-?

Both belong to the same UFO family of Sloting Plus and share the system for use with or without foam. The -R- variant corresponds to a specific geometry within the range; consult the dimensions of each version to choose the most suitable for your assembly.

Can I use this wheel without foam?

Yes. One of the advantages of the UFO design is precisely that: you can mount it directly with the tyre, like any conventional magnesium wheel, or take advantage of the included foams to add a layer of dynamic adaptation.

What type of track is it most recommended for?

The foam system makes this wheel particularly interesting on wooden tracks, where the harder surface requires greater adaptation. It can also work well on plastic tracks, although the optimal adjustment will depend on the tyre compound and the overall setup of the car.

Is the M2.5 x 3 stud compatible with all competition axles?

The M2.5 x 3 is the most widely used standard in 1/32 slot racing, but it is always advisable to check the thread size of your specific car's axle before assembly.

How much does each wheel weigh?

Each wheel weighs 1.08 g, a very competitive value within the range of magnesium wheels for 1/32.

The Sloting Plus UFO -R- wheel (SP023504) is a 16.2 x 10 mm magnesium rim weighing just 1.08 g, designed for 1/32 slot car competition. Its unique UFO design allows use with or without foam inserts, offering dynamic adaptability on both plastic and wood tracks. Each bag includes 2 wheels, 4 foam inserts and 2 M2.5 x 3 mm allen studs — a versatile lightweight solution for club racers and competitive builders alike.