Wheel 16.7 x 10 mm Urano Evo II Magnesium

Sloting Plus Urano Evo II: the evolution that makes a difference in slot competition

When track performance depends on tenths, every gram counts. The Urano Evo II rim from Sloting Plus incorporates all the experience accumulated over years in the development of magnesium rims for slot cars and takes it a step further, both in performance and aesthetic finish.

Technical specifications

• Material: High-quality magnesium
• Dimensions: 16.7 x 10 mm
• Weight: 1.07 g
• Fasteners: M2.5 x 2.5 mm Allen screw
• Contents: Bag with 2 units
• Reference: SP022522

Function and performance

The distinguishing feature of the Urano Evo II is the lightening of the inner wing flank through strategic perforations. This solution, which Sloting Plus first introduced over 17 years ago in its Merkuro line, reduces rotating mass without compromising the structural rigidity of the rim. Less rotational inertia translates into a more responsive acceleration and greater precision in cornering.

Magnesium, chosen as the base material, provides a strength-to-weight ratio that is hard to match with other metals commonly used in the manufacture of slot rims. The result is a piece that feels solid when mounted but adds minimal mass to the rolling assembly.

Assembly and preparation

The rim includes a M2.5 x 2.5 mm Allen screw, specifically designed to facilitate axle balancing as close to ideal as possible. A well-balanced axle eliminates vibrations at high speed, improves tyre contact with the track, and extends the lifespan of the bearings.

For assembly, it is advisable to check that the diameter of the car's axle is compatible with the rim's housing before tightening the screw. A small amount of low-strength thread lock on the screw helps maintain a stable fit during long sessions without hindering future interventions.

Common mistakes

The most common mistake when working with magnesium rims is over-tightening the fastening screw. Magnesium, while strong, can be damaged if excessive torque is applied: tighten firmly but without forcing. Another point to watch is the balancing after tyre mounting: even with a perfectly machined rim, a poorly centred tyre introduces imbalances. Spend a few minutes balancing on the lathe before taking the car to the track.

Ideal for…

These rims are designed for club and competition drivers who seek to maximise the performance of their slot car and do not want to compromise on the precision that magnesium provides. Their balance of lightness, rigidity, and ease of preparation makes them a highly valued option among the most demanding preparers.

Frequently asked questions

What advantage does magnesium have over aluminium in a slot rim?

Magnesium is significantly lighter than aluminium while maintaining comparable rigidity. In a rim, less rotating mass reduces inertia, which is particularly noticeable in acceleration response and stability when braking before corners.

What is the purpose of the perforations in the inner flank of the rim?

Their sole purpose is to reduce weight. They remove material in an area where its structural contribution is minimal, lightening the rim without weakening the areas that bear the actual rolling and axle attachment loads.

Is the M2.5 x 2.5 mm Allen screw included in the bag?

Yes, the bag includes the 2 rims along with the necessary M2.5 x 2.5 mm Allen fastening screw for assembly.

Is it necessary to balance the rims before using them?

It is always advisable to balance the rim-tyre assembly once mounted. A well-manufactured magnesium rim like the Urano Evo II minimises the inherent imbalance of the rim, but the tyre mounting process can introduce small variations that should be corrected on the lathe.

What tyres are compatible with these rims?

Compatibility depends on the inner diameter of the tyre and the outer dimensions of the rim (16.7 x 10 mm). Check the Sloting Plus tyre catalogue to find the specific references designed for this profile.

Can I use these rims in official slot competitions?

It depends on the regulations of each championship. Magnesium rims are allowed in most categories of free preparation. Check with the organiser of your local championship if there are any restrictions on rim materials in the category you compete in.

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