Avinox MG Concept: Avinox sparks a revolution in engines and gearboxes

Opinion of the BIKE editorial team

Avinox is sticking to its blistering pace and unveiling its next big hit! The pace of development in China is staggering – the question remains as to how quickly and effectively the MG Concept will be transformed into a production-ready product. This model could be the next Avinox product to really shake up the e-bike industry.

It’s the surprise of Eurobike 2026. Avinox only launched the groundbreaking M2S this spring. Now the Chinese firm is unveiling its next big hit: an e-bike motor with an integrated gearbox. A dream solution that many manufacturers have already tried to achieve. Yet no solution has really managed to catch on so far.

The advantages of the design are obvious: no rear derailleur and no cassette, which means fewer faults and lower maintenance costs. The chain – or a low-maintenance, quiet carbon belt – does not run at an angle, which further reduces wear and tear. Furthermore, the weight distribution is ideal: the heavy derailleur is positioned centrally and low on the bike – rather than as an unsprung mass on the rear wheel. This improves the ride dynamics and suspension performance of the rear triangle. Rattling noises are minimised, and gear changes are possible at any time – even when stationary.

The facts about the MG Concept

• Power and torque on a par with the Avinox M2S
• Continuously variable transmission with a 520 per cent range
• Manual or automatic gear changes are possible
• Number of gears and gear ratios can be configured
• Switching speed <0.1 seconds, without interruption to the power supply
• Designed for all categories of e-bikes
• With a strap or chain
• Maintenance-free for its entire service life
• Series production planned for 2027
• Weight: around 4 kilos
• Electric braking and energy recovery may be possible in the future

Unlike Pinion’s MGU E 1.12, Avinox uses a continuously variable transmission similar to an ECVT (Electronically-Controlled Continuously Variable Transmission). Instead of defined gear ratios, the gear ratio can be adjusted continuously and seamlessly. This ensures the rider always has the ideal cadence at their disposal. The system is ideal for automatic gear changes, but can also be operated manually if desired. A key feature here is that the gears can be selected freely, meaning that the number of gears and gear ratios are variable. Overall, the transmission delivers a range of 520 per cent. This is identical to a SRAM Eagle Transmission drivetrain.

In terms of performance, Avinox certainly doesn’t hold back. The “Performance variant” is said to deliver similar performance figures to the M2S – that would be 1,500 watts and 150 Newton-metres. Presumably, the MG motors will also be available in several power classes. No specific weight figure has yet been given for the unit. Overall, the weight is expected to be comparable to a combination of an M2S motor and a SRAM derailleur. Avinox vaguely mentions around 4 kilos.

The motors on display are still early prototypes. Avinox does not refer to them as a finished product, but rather as a concept. However, five frames (prototypes) from well-known manufacturers were already on display at the trade fair, all of which are specifically designed to accommodate the new Avinox unit: Canyon, Commencal, Forbidden, Megamo and Mondraker. According to Avinox, these manufacturers have already firmly committed to producing bikes featuring the drive system. Avinox says the first bikes are expected to be ready for sale before the end of 2027.