Wheel inserts for 15.8/16.5mm wheels (4x)

Slot.it Wheel Inserts for 15.8 mm and 16.5 mm Wheels: The Detail That Makes a Difference on Track and Display

Wheel inserts are one of those elements that go unnoticed until they are missing: they influence the final presentation of the car and, in some setups, also the lateral retention of the tyre on the hub. The SIPA87 pack from Slot.it includes 4 wheel inserts specifically designed for 15.8 mm and 16.5 mm diameter wheels, the most common sizes in the brand's range of rear wheels for 1/32 competition.

Function and Performance

Beyond the aesthetic aspect, these inserts serve a specific practical function: they cover the wheel's attachment to the axle, protecting it from dust and dirt accumulated during running sessions. In competition setups, where tyre and wheel changes are frequent, having a stock of inserts in good condition prevents the car from losing visual finish between races.

Compatibility

Designed by Slot.it to fit their own 15.8 mm and 16.5 mm wheels. If you have doubts about whether they are compatible with a specific wheel in your setup, check the nominal diameter of the wheel before placing your order. Slot.it maintains a very organised reference coding system, making it easy to cross-reference your wheel code with this insert from the official catalogue.

Installation and Preparation

Installation is straightforward: the wheel inserts fit snugly into the centre of the wheel without the need for tools or adhesives. To remove them without damaging the wheel, simply apply a gentle lever with a flat-tipped tool. In competition or championship preparations, it is recommended to check the condition of the inserts along with the tyre change to ensure a uniform appearance across all axles.

Common Mistakes

• Trying to force an insert of incorrect diameter: always check that the wheel is 15.8 mm or 16.5 mm before installation.
• Using adhesive unnecessarily: the snug fit is sufficient and facilitates future removals.
• Mixing inserts of different references on the same car: although visually it may seem indistinct, the fitting tolerances can vary between references.

Frequently Asked Questions

How many units does the SIPA87 pack include?

The pack includes 4 wheel inserts, enough to equip all 4 wheels of a car or to have spare units on hand.

Are they compatible with wheels from other brands?

They are designed for Slot.it wheels of 15.8 mm and 16.5 mm. Compatibility with wheels from other brands depends on whether the diameter of the central housing matches exactly; we cannot guarantee this without prior verification.

Can they be used on the front axle?

It depends on the diameter of the front wheels in your setup. If they are 15.8 mm or 16.5 mm, then they are compatible. Front wheels in 1/32 often have different diameters, so check before installation.

Is any special tool required for installation?

No. The fit is snug and does not require tools. For removal, a gentle lever with a flat-tipped tool is sufficient.

Do they affect the dynamic behaviour of the car?

Their impact on track behaviour is minimal. Their main function is aesthetic and protective of the axle attachment. In any case, Slot.it designs its spare parts with very tight tolerances to avoid introducing imbalances.

Slot.it SIPA87 wheel inserts for 15.8 mm and 16.5 mm wheels, pack of 4 units. Essential spare parts for 1/32 slot car racing and preparation. Compatible with Slot.it wheels in standard competition diameters. Keep your slot car in top condition with original Slot.it components, trusted by club racers and serious hobbyists worldwide.