bicycle continuously variable transmission

BICYCLE CONTINUOUSLY VARIABLE TRANSMISSION SERIAL

Onboard pedal cadence and torque sensors keep track of the user’s pedal input and use that information to engage the motor power as well as determine when to shift gears. That provides a number of unique benefits over chain drives, such as quieter operation, longer lasting components, and cleaner operation without the need for oiling.Īnother advantage of moving the transmission from the rear wheel to the center of the bike is the improved mass centralization. Since the Valeo Smart e-Bike System completely does away with the need for a derailleur, a belt drive setup can be used. No matter the true power rating though, the Valeo’s EU location means it is likely to receive a 250W sticker. The company claims that the Valeo drive is “up to 60% more powerful than competitors,” without giving specific wattage numbers. The motor is capable of outputing up to 130 Nm of torque, though a power rating isn’t immediately available. It features seven gear ratios and is designed to operate on 48V, with Valeo offering a downtube-mounted battery as part of the system. The result is known as the Valeo Smart e-Bike System and can be integrated into OEM e-bikes similarly to typical mid-drive motors like those from Bosch or Yamaha. Paris-based manufacturer Valeo, on the other hand, worked with transmission maker Effigear to actually build an automatic transmission directly into the mid-drive motor and create a single unit. But not a technological advancement in its own right.

BICYCLE CONTINUOUSLY VARIABLE TRANSMISSION SERIAL

Take Serial 1’s Brose S Mag mid-drive motor paired with automatic CVT from Enviolo built into the rear hub.Īwesome, yes. They’re fancy, but they’re ultimately just a combination of parts. We’ve tested several models that feature mid-drive motors paired with automatic transmissions. The French company Valeo has just unveiled a radical new type of mid-drive electric motor that adds a built-in automatic transmission.Īutomatic transmissions alone aren’t unique in the e-bike space. If you thought you knew all of the mid-drive motors in the e-bike world, think again.

Bicycle continuously variable transmission