This motor could be the future of e-bikes | The Verge
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A new generation of motor gearboxes coming in 2027 promise seamless shifting without derailleurs or cassettes.
A new generation of motor gearboxes coming in 2027 promise seamless shifting without derailleurs or cassettes.
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Imagine an e-bike motor that lets you select your preferred pedaling cadence and then automatically adjusts the gears to keep your legs spinning at that exact speed, no matter how steep the hill gets – all without a fragile derailleur or heavy multi-speed cassette to maintain. Prefer manual control? No problem, you can have as many gears as you like in whatever ratio makes you feel most connected to the terrain. That’s the e-bike motor announced last week at the big Eurobike trade show in Frankfurt, by not just one company, but two.
Pictured above is the MG Concept. It’s a Motor Gearbox Unit, or MGU, from Avinox, the DJI spinoff that’s upending electric mountain bikes. Avinox burst onto the scene two years ago with the launch of its impressive M1 drive system that packed unprecedented power inside a mid-drive motor that’s smaller, lighter, and cheaper than anything provided by competitors like Bosch or Specialized – and Avinox just launched the upgraded M2-series two months ago. The MG Concept takes things a step further by combining an electric motor with an automatic gearing system inside a single, compact housing that lets bike makers do away with derailleurs and cassettes.
Avinox wasn’t alone, either. The MG concept debuted alongside the very similar X-series MGUs also announced last week by newcomer Gobao. These next-generation motors could fundamentally alter how standard e-bikes are built, despite both getting their start in cutting-edge electric mountain bikes that can easily cost $10,000 or more.
Newcomer Gobao had two MGUs with e CVTs on display at Eurobike.
Like Formula 1, e MTBs are a tech proving ground for manufacturers whose customers are willing to pay top dollar for a measurable performance advantage. Advances in e MTBs eventually trickle down to the rest of the bicycle market, as we’ve recently seen with the new Amflow TL “e SUV” built around a traditional Avinox M2 motor, derailleur, and cassette.
Existing MGUs, like those made by Pinion, already integrate the gearbox inside the motor housing, but they still rely on a finite number of fixed, discrete gear ratios. The innovation behind both Avinox’s MG Concept and Gobao’s X-series motors is an integrated e CVT (Electronic Continuously Variable Transmission) that adds a layer of computerized precision to eliminate the stepped nature of mechanical shifting.
Both of these new motor gearbox units with integrated e CVTs feature infinite gear ratios that adjust continuously and seamlessly, meaning there are no fixed steps between gears (unless you want them). You can define as many virtual gears as you like with your preferred gear ratios. The system constantly evaluates your speed, pedal pressure, and the terrain in real time. The motors also feature an auto mode that keeps your legs pedaling at a constant cadence, delivering a ride similar to the “stepless” shifting experience I enjoyed in 2023, when I first reviewed a bike fitted with Enviolo’s mechanical CVT.
E-bikes built around these new motor gearboxes should benefit from a more durable transmission that requires far less maintenance, gears that can quickly shift under heavy load or at a standstill, and improved handling by moving the transmission mass from the rear wheel to the bike’s center.
The Avinox MG was developed in partnership with Canyon, Commencal, Forbidden, and Mondraker, who all had prototype e MTBs on display at Eurobike — three with chains, and one with a belt drive. Gobao used a self-branded e-bike at the show to demonstrate pre-production prototypes of its motor. First ride reports from the show found both MGUs to be very impressive, and better and quieter than existing Pinion MGUs.
And while targeting electric mountain bikes for now, if this new breed of MGU proves reliable and affordable, expect the motors to migrate to commuter, cargo, and family e-bikes over the next few years.
Gobao says it’ll begin mass production of the X1 (120 Nm of torque / 1200W max power) and X1P (150 Nm / 1500W) in February 2027, according to Bikebiz, and is targeting e MTBs and categories spanning “urban, trekking, cargo, and SUVs.” Avinox is offering fewer specifics, committing to a launch sometime in 2027. Its production MG motor is expected to produce about the same max torque and power as Gobao, and be “easily adapted to e MTB, e Trekking, e SUV, e Gravel and other bike models.”
I personally can not wait. I’m so done with snapping and bending derailleurs on rocks and urban bike racks, and digging mud and grit out of cassette cogs. It’s time for a simplified drivetrain for people that need to climb hills or carry a heavy load, even if it’s only to bring the kids to school up a paved road instead of a double-black trail.
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