With these E-CVT's kill the rest of the market?

[De$lo(]

Just for the sake of clarity, if you run out of battery does that make these bikes unridable being that they have no physical gears to actually change?

 

[Ride 2d@y]

Just for the sake of clarity, if you run out of battery does that make these bikes unridable being that they have no physical gears to actually change?

I read that they will have a limp mode - like they do now as a reserve and for AXS shifting

 

[TimC7]

Just for the sake of clarity, if you run out of battery does that make these bikes unridable being that they have no physical gears to actually change?

Who knows, there isn't a production bike yet, but seems likely they will still have a means for changing gear when the motor cuts.

 

[Ndanger]

He has a point

He has a great point, however he seems to be talking about the Rivian bike which is a "dynamo" and not a direct drive, more "Pedal by Wire".

I am not sure why he has the e-cvt type pictured (Gobao / Avinox) which of course are direct drive through complex planetary gearing.

 

[Suns_PSD]

Ride feel starts at 3:30.

Just my opinion, but yes I think these will have an important place in the emerging high powered Class 2+ e-bike segment and I think they make great sense. But I think they will be relegated to that segment of the market ultimately due to lower efficiency, larger batteries & higher weights.

It's going to be fun to watch for sure.

Think of the All Mountain light e-bike market as like the Mazda Miata Manual transmission of the e-bike market. Built more for high engagement, maximum involvement and back to the basics.

 

[Ride 2d@y]

Just my opinion, but yes I think these will have an important place in the emerging high powered Class 2+ e-bike segment and I think they make great sense. But I think they will be relegated to that segment of the market ultimately due to lower efficiency, larger batteries & higher weights.

Hmm, Alex Bike Tester did say it may be a “door opener to cheaper bikes“ which may reduce the cost of higher-spec bikes too. Nothing wrong with that, right?

 

[slickrock]

Ride feel starts at 3:30.

Just my opinion, but yes I think these will have an important place in the emerging high powered Class 2+ e-bike segment and I think they make great sense. But I think they will be relegated to that segment of the market ultimately due to lower efficiency, larger batteries & higher weights.

It's going to be fun to watch for sure.

Think of the All Mountain light e-bike market as like the Mazda Miata Manual transmission of the e-bike market. Built more for high engagement, maximum involvement and back to the basics.

I'm glad that he spent time describing the feel of the motor at the pedals; that it felt more response in boost mode implies that there's more software tuning to be done, which is easier to pull off than fundamental mechanical gear changes. Clearly Rob was more blown away than Alex and if I had to place bets, it's no surprise who's opinion I'd trust more.

 

[ArmyOfEvilRobots]

He has a point

Kinda.

He describes a series hybrid, but that's not what either of these MGUs are; they're parallel hybrids which are far more efficient. Comparing a Prius (car) with an MGU (bike) is a fools errand, there are too many other factors, but remember that a lot of the power from the rider is directly transmitted through the planetary gear, with only some of it (or none of it if the battery has enough charge) being redirected back to power the ratio/sun motor.

Next up, his efficiency numbers are right for a singlespeed, but that doesn't matter in this case, because the MGU competition is a traditional gearbox, which has far lower efficiency: Which Bicycle Gearbox Has The Highest Drivetrain Efficiency? Rohloff, Pinion, Shimano - CYCLINGABOUT.com

Anyhow, until we actually see these things out in the real world (and until somebody does a methodical efficiency test), we're all just old men yelling at clouds on this topic It's going to be interesting seeing these things in real life; a bicycle has far different, and in some ways simpler needs than a car. No reverse, no starter, for example.

 

[patdam]

Pour éviter toute confusion, je pense qu’il est important d’utiliser les termes appropriés : MGU pour la boîte de vitesses mécanique (qu’elle soit intégrée au moteur ou non), et ECVT pour la transmission hybride (ensemble d’engrenages planétaires, deux moteurs électriques et moteur à combustion interne ou puissance humaine).