Revonte debuted their ONE Drive System at Eurobike 2019, and now they’re announcing their first official bike partnerships. The innovative design combines an e-bike drive unit with an integrated stepless automatic transmission. Designed to work with a variety of bike styles, the unit has a high degree of customization available to each e-bike manufacturer.

Revonte ONE e-bike motor and automatic transmission system

While automatic transmissions aren’t very common for bicycles, they are slowly gaining more acceptance. Revonte has a unique take that combines automatic shifting with an e-bike drive system, rather than having two completely independent parts.

The system was shown at Eurobike 2019, and has its first two official OEM partners secured for 2020 – Tunturi and Lavelle Bikes. They have also partnered with industry veteran, Rolf Singenberger, who was the head of R&D at BMC.

The motor produces 250 watts and 90Nm of torque, pulling from a huge 36 volt, 635 Wh battery. The CVT transmission has a reported 416% gear range at 60 rpm.

All that power comes at a weight penalty – 4.7 kg (10.4 lbs) for the drive unit and 3.98kg (8.8lbs) for the battery. Chainline is reported at 57.8mm, with a q-factor of 180mm.

Revonte concedes that, while a fully automatic transmission is great for most cases, sometimes you want more control (i.e. off-road or high-torque situations). To accommodate this, their system has a semi-automatic mode with a paddle shifter that simulates shifting gears in a traditional cassette. You can set the number of gears and adjust the ratios using the Revonte mobile app.

Revonte says that they’ve designed the ONE as an ecosystem using an open API – giving you the ability to build your own applications. Connectivity is provided via 4G, Bluetooth, Wifi, GPS, and CAN bus.

The Revonte is an OEM product, so no consumer retail pricing is available. The system will begin its availability on the brands mentioned above in 2020.

Revonte.com

11 COMMENTS

  1. Chris from Propel put it best… We are at the very infancy of eBikes and ebike motors. There’s dozens of companies jumping into the fray here, Revonte being “just” the next to add their bits to the soup. There’s the giants who lead the pack (the Shimanos, Bosch, Yamaha, etc), then there’s so many others who are trying to stand out, but the question is: Will they be around in 2 years, 4 years, 8? It’s a big risk for the consumer to invest thousands on an ebike that may not be supported a few years down the road. Continental dumped it’s eBike system a couple years in, as did BionX… How many hub motors and incompatible lithium battery packs litter garages and bike closets around the world… Say what you want, but “standardization” is a good thing for the consumer.

    • This is my exact reasoning why the generic e-bike kits using off the shelf parts are a better investment than sleek models with built in batteries. What are the chances you’re going to be able to find a replacement battery for one of those 20 years from now?

      • Another good question is will you want to continue riding a 10-20 year old e-bike, or will you want whatever the current technology is by then? I sure don’t miss my 26″ wheeled MTB from 20 years ago.

      • There’s also companies like Grin Technologies that do their own engineering to provide customizable ebike components to the DIY market. Their controllers can automatically determine phasing and polarity on hub motors to simplify wiring.

        They just put out a video a few weeks ago showing how to interface an otherwise obsolete Bion-X motor to one of their controllers.

  2. I spy two electric motors there, which gives me hope. It may be similar to the Toyota HSD concept where the smaller motor is the de facto gear ratio controller, giving continuosly variable transmission without the poor efficiency that characterises all known mechanical CVTs.

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