The Centauri II is an auto-shifting e-bike, but unlike a lot of bikes where automatic shifting feels awkward or gets in the way, this one actually gets it right. The torque-sensing mid-drive motor and automatic three-speed hub work together to deliver a ride that feels quick, natural and genuinely intuitive. It’s easily one of the best self-shifting setups I’ve tested.
The AutoShift transmission quietly shifts at speeds of around 12 and 20 mph. Additionally, it has a Gates CDX carbon belt drive instead of a traditional chain. This results in almost zero maintenance, with no grease, no mess and no chain slap. Just a smooth, silent drivetrain that lasts longer than a typical chain system.
Vvolt equips the Centauri II with a 350-watt mid-drive motor (peaking at 650 watts), producing 120 newton-meters of torque, supported by internal torque, cadence and speed sensors. Translation: It responds immediately to how you pedal and provides power exactly when you need it.
The frame has a clean, streamlined look, and the 30mm front suspension surprised me. It smooths out city streets without adding bulk or extra weight, unlike a traditional mountain-bike fork. Paired with cushy tires, it’s excellent for both city riding and light off-road trails.
You get a 490-watt-hour UL2271-tested removable battery with a real-world range of up to 60 miles, and the bike is Class 3, capable of reaching speeds of up to 28 mph with pedal assist. The weight ranges from 50 to 56 pounds, depending on the frame size, which is relatively light for a full-power mid-drive electric bike.
Vvolt also adds a nice touch with the Boost button: Hit it, and you get 4 seconds of maximum motor assist while pedaling between 5 and 20 mph — perfect for quick starts or powering through tough sections. Overall, the Centauri II keeps things low-maintenance, modern and incredibly smooth. The result is a smart, stylish e-bike that takes the hassle out of shifting, allowing you to simply enjoy the ride.
