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CVT on an ebike?

Old 10-17-22, 08:17 PM
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CVT on an ebike?

I've been turned on to the benefits of the mid drive recently. I've been thinking about a possible build. I would pair the mid drive with a Nuvinci CVT. they're pretty cheap on eBay now.

I've ridden a Nuvinci before and it was too heavy, but I think in an ebike it would make a lot of sense. It would be a clean straight chainline. The nature of the CVT drive would be such that there wouldn't be any danger of it falling between gears. This would be a problem given the power of the electric motor.

I think budgeted out, I could probably build a mid drive system with CVT for roughly...$1300.
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Old 10-18-22, 06:06 AM
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A few Nuvinci hubs were available at my local co-op so I considered grabbing one to build up in a wheel. As soon as I hefted the hub, I dropped it back into the storage drawer. Man, those things are heavy. Their gearing range is a bit wider than the Alfine 8, but that Shimano hub is about 2 lbs lighter. Nevertheless, I'd be interested in your impressions if you choose to move forward with your project.
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Old 10-18-22, 06:26 AM
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I used one on the solar eBike I built for extended cross country. I liked that I was able to precisely trim the gearing to get a specific level of power draw. I also have one on my eBike that I use for commuting. In the commuting application, I am thinking that a conventional IGH would be a better way to go. If I had it to do again I think I would have done without the NuVinci on the commuter.

That said, I really like the belt drive on the commuter. However, one can get a belt drive with an IGH also.
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Old 10-18-22, 10:35 AM
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Earlier this year I had the shop convert my DIY ebike with an Enviolo Cargo CVT, I wrote a blog post about it https://ebikelovers.com/2022/03/28/r...t-for-e-bikes/
I recommend for ebikes one of the stronger models such as the Enviolo Cargo I have, they can handle the motor torque.
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Old 10-19-22, 03:37 PM
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We sell tons of ebikes with Enviolo for years, they are fantastic on ebikes and I highly recommend it especially with a belt it is a pretty much literally a no-maintenance drivetrain minus some cable replacements every once and while or more if you are rough with the shifter. I must also say the little orange figure is really fun (I know the new systems it is grey) but it adds some fun. I am personally not a fan of the Automatiq system as you cannot manually shift but the concept is pretty cool and can help open cycling up to a lot more people who don't want to shift or have issues with their hands or something so shifting is tough,
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