Mitoos MXL z64 timing belt

The Mitoos MXL z64 timing belt (ref. CXM464) is the transmission component that makes a difference when precision and reliability are non-negotiable.

In slot configurations where the motor's power must reach the axle intact, the transmission belt is a critical link. This unit with 64 teeth, 2 mm wide, and standard MXL pitch ensures a backlash-free engagement and torque transmission without slippage, even at the high RPMs demanded by competition setups.

Function and performance

The MXL pitch is one of the most widely used standards in small format synchronous transmissions. Its rounded tooth profile reduces material fatigue and facilitates smooth engagement with the corresponding toothed pulley, minimizing noise and premature wear. With 64 teeth, this belt offers an appropriate pitch length for axles spaced at medium distances, common in Raid or 4x4 type chassis.

• Teeth: 64 (z64)
• Width: 2 mm
• Pitch: Standard MXL
• Application: Transmission between axles in competition and Raid slot cars

Compatibility

This belt is optimised to work with Mitoos toothed pulleys from the same MXL family, both in plastic and machined aluminium versions. Check the available pulley references in the catalogue to ensure that the wheelbase of your chassis matches the length of this belt before installation.

Installation and preparation

Installation is straightforward but requires attention to tensioning: a belt that is too loose introduces play and loss of responsiveness; too tight accelerates wear on bearings and the belt itself. Adjust the wheelbase until achieving a slight tension without forcing. No lubricant is necessary on MXL toothed belts of this type, unless expressly indicated by the chassis manufacturer.

Common errors

• Mixing different pitches: The MXL pitch is not interchangeable with GT2 or other profiles. Ensure that your pulleys are also MXL.
• Ignoring the width: 2 mm is a specific measurement. A wider or narrower groove pulley does not guarantee correct guiding of the belt.
• Not checking the number of teeth on the pulley: The gear ratio depends on the quotient between the teeth of the driving and driven pulleys, not just the belt.

Frequently asked questions

What does "MXL" mean in the name of the belt?

MXL is an international standard designation for small pitch synchronous toothed belts (2.032 mm between teeth). It defines both the tooth profile and the pitch, so it is essential that the pulley is also MXL to ensure correct engagement.

How many teeth should the pulley have to use this belt?

The number of teeth on the belt (z64) indicates its total length, not the gear ratio. You can combine it with pulleys of different tooth counts as long as the wheelbase of your chassis is compatible with the length of this belt.

Is it valid for 4x4 and Raid setups?

Yes. It is precisely in configurations with traction on both axles where the synchronisation offered by a toothed belt is most relevant, as it prevents speed differences between axles that would penalise traction on low-grip sections.

How often should it be replaced?

It depends on usage and session intensity. In regular competition, it is advisable to visually inspect the belt at each chassis review, looking for cracks, worn teeth, or visible elongation. A damaged belt can break on track and leave the car without traction.

Can I use this belt with pulleys from other brands?

In theory, any MXL pulley of the same width is geometrically compatible. In practice, the best results are obtained by pairing belts and pulleys from the same brand, as manufacturing tolerances are optimised to work together.

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