Electric Bicycle and Scooter FAQ’s with the NuVinci™ Drive Hub
The NuVinci™ CVP Drive Hub delivers a totally Unique Riding experience. You’ll never miss a gear again because there are no gears to miss. The NuVinci™ CVP uses a set of Rotating Spheres to transfer torque from the pedals to the road and is intuitive to meet even the slightest changes in terrain or incline. The NuVinci transmission uses a set of rotating and tilting balls in lastohydrodynamic contact between the input and output components of a transmission that tilt to vary the speed of the transmission. Tilting the balls changes their contact diameters and varies the speed ratio. The NuVinci CVP provides the most adaptable and scalable continuously variable transmission (CVT) available today and improves acceleration, performance and overall efficiency.
Q: How does the NuVinci™ hub impact the riding experience?
A: The NuVinci CVP provides a totally new kind of riding experience. Instead of fumbling around to find the right gear, the rider is able to shift immediately and intuitively to meet even the slightest changes in terrain or incline. A twist of the wrist is all that’s needed to find the perfect “sweet-spot” for every rider. The NuVinci CVP shifts without noise or hesitation, and eliminates dropped chainscaused by mis-shifting derailleurs.
Q: Is there any required maintenance?
A: The hub contains a “traction” fluid. The only recommended maintenance is that the fluid be changed periodically. The change interval will be determined by the manufacturer and type of use but is expected to be every couple of years. Also, unlike bikes with a sensitive derailleur, all of the component parts are enclosed within the hub making it less likely that a part could be hit and damaged, as well as minimizing the exposure of moving parts to dirt and debris.
Q: What is the ratio range and efficiency of the NuVinci CVP hub?
A: From bench and road testing by potential consumers and industry experts, the NuVinci CVP compares favorably with the internally geared hubs on the market today and has the same or better ratio range.
Q: How much does the NuVinci CVP hub weigh?
A: Weights will vary between model and application. The first model is designed for cruiser/comfort and commuter bicycles. The weight of the NuVinci rear hub is greater than that of a rear derailleur drive train. However, multiple chain rings, a cassette and dual shifters are no longer required.
