MXL belt z46 - 2mm - 1pc

Precise transmission at high RPM with the Mitoos MXL z46 belt

The CXM446 belt from Mitoos is an MXL pitch toothed belt with 46 teeth and 2 mm width, specifically designed for belt drive systems in competitive slot cars. Its standardisation in MXL pitch ensures an exact fit with the Mitoos pulley range, preventing skips, play, and torque loss in the most demanding corners.

Main features

• Standardised MXL pitch: widely used standard in belt drives for slot, facilitating integration into precision setups.
• 46 teeth: gear ratio calculated to work efficiently in both long track and club circuit setups.
• 2 mm width: compact dimension allowing use in chassis with limited space without compromising transmission robustness.
• Single unit (1 pc): perfect for replacing a worn belt without the need to purchase larger packs.

Compatibility

This belt fits precisely with the entire range of Mitoos toothed pulleys:

• Plastic pulleys: references M136 to M140.
• Aluminium pulleys: references M143 to M149.

Being manufactured according to the MXL standard, it may also be compatible with other market pulleys that respect the same pitch, although we recommend verifying this before installation.

Function and performance

MXL pitch toothed belts are the usual choice in slot chassis that seek to transmit motor rotation to the rear axle without slipping. Unlike smooth belts, the positive tooth design ensures a constant gear ratio regardless of load, resulting in a more precise response when accelerating and better inertia braking when releasing the trigger of the controller.

With only 2 mm width, the CXM446 operates with minimal friction, reducing losses due to lateral drag and helping to maintain a stable operating temperature even during long track sessions.

Installation and preparation

For correct installation, ensure that the belt tension is appropriate: too tight can increase mechanical losses and strain the bearings; too loose can favour tooth skipping under load. It is usual for the belt to have a slight vertical play — a couple of tenths of a millimetre — without becoming visibly loose.

Periodically inspect the condition of the teeth: a belt with rounded teeth or micro-cracks in the rubber should be replaced before it causes a loss of synchronisation during a race.

Common mistakes

• Installing the belt without properly aligning the pulleys in the same plane, leading to accelerated lateral wear.
• Reusing a belt that has suffered a momentary overstretch (due to an axle lock, for example): although it may visually appear to be in good condition, it may have lost its nominal elasticity.
• Mixing MXL belts with pulleys of different pitches (GT2, HTD…): the tooth design is not interchangeable between standards.

Frequently asked questions

Is this belt compatible with pulleys from other brands?

As it follows the standardised MXL pitch, it may be compatible with pulleys from other brands that respect the same pitch. However, to ensure an optimal fit and avoid synchronisation issues, we recommend using it with the Mitoos toothed pulleys indicated in the description.

When should I change the belt?

When you notice a loss of response in acceleration, unusual transmission noises, or when observing worn, rounded, or cracked teeth. In competitive use, a visual inspection after each intense session is good practice.

Can I use this belt in anglewinder or inline setups?

The belt itself is not limited by the motor configuration: what determines viability is the chassis geometry and the position of the pulleys. Ensure that the selected pulleys are compatible with the centre distance of your specific setup.

Does the reference CXM446 include more than one unit?

No, this reference includes a single belt (1 pc). If you need multiple units for spare parts in the box, you can purchase as many units as you need.

The Mitoos CXM446 is a normalised MXL pitch toothed belt, 46 teeth and 2 mm wide, designed for high-performance slot car transmission systems. It fits perfectly with the full Mitoos pulley range — both plastic (M136–M140) and aluminium (M143–M149) — ensuring precise, slip-free power transfer at high RPM. An essential spare part for any slot car builder or competitive racer looking for reliable belt drive setups.