Double R12 truck wheels

Double R12 Wheels for Slot Truck: Precise Measurements for Demanding Preparation

When preparing a slot truck, choosing the correct wheels is as important as any other adjustment of the running gear. These double R12 wheels (ref. CXM069) are specifically designed for truck applications, with very defined dimensions that facilitate assembly without the need for additional machining.

Technical Features

• Pack Contents: 2 units
• Axle Diameter: 2.38 mm
• Total Diameter: 18 mm
• Width: 17.75 mm
• Weight: 4.25 g

Function and Performance

The double R12 format provides a larger lateral support surface, which is fundamental in the usual scale and proportions of slot trucks. The 18 mm diameter and 17.75 mm width allow for generous profile tyres without compromising ground clearance, while the 2.38 mm axle ensures a firm and concentric fit in the rear assembly.

The weight of 4.25 g per wheel is a relevant figure for those working on the model's balance: when preparing the two axles of a truck, knowing this value in advance allows for accurate mass distribution calculations.

Assembly and Preparation

Before mounting the tyres, it is advisable to check that the fit on the axle is correct: a proper tightening prevents both rotational slipping and premature wear of the wheel's inner plastic. If play is detected, a small application of cyanoacrylate adhesive on the axle resolves the issue without adding significant weight. For a clean assembly, it is recommended to turn the tyres once installed, ensuring perfect concentricity of the assembly.

Common Mistakes

The most common mistake with wheels of these dimensions is assuming compatibility without verifying the axle measurements and the chassis accommodation. Before purchasing, always check the axle diameter of your truck and the available space in the wheel area to confirm that the 17.75 mm width fits correctly without rubbing against the body or chassis.

Frequently Asked Questions

How many wheels are included in the pack?

The pack contains 2 units.

What is the compatible axle diameter?

The axle of these wheels measures 2.38 mm in diameter.

What is the total diameter of these wheels?

The total diameter is 18 mm.

How much does each wheel weigh?

Each unit weighs 4.25 g, a useful figure for calculating mass distribution in the model.

Is it necessary to turn the tyres after assembly?

It is not strictly mandatory, but turning the tyres once mounted improves the concentricity of the assembly and optimises track performance, especially in competition.

These CXM069 double R12 truck slot wheels are a reliable choice for hobbyists building or tuning slot truck models. With a 2.38 mm axle diameter, 18 mm total diameter and 17.75 mm width, they deliver accurate fitment and consistent rolling performance. Supplied as a pack of 2 units, they are ideal for slot truck racing, scale truck preparation and competitive slot car builds.