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Yamaha supposed to have their own ebikes with 28 mph coming soon. They've offered their mid drives for others like Giant to use in the Class 3 , 28 mph configuration for some time now.
Browneye
Well-Known Member
Pretty awesome for a road bike, eh?? 
I wouldn't mind a speedbox or something as the bikes are so efficient they hit the limiter too easily. Not to go 28 per so, but just to pickup a couple more mph when you have room to do so.
Gearing becomes an issue at the higher speeds - a couple more teeth on the chain ring would be of great benefit.
So I hear the 2020 pro motor has been improved quite a bit - higher cadence support and much quieter. Now they need a 750w pack.
I wouldn't mind a speedbox or something as the bikes are so efficient they hit the limiter too easily. Not to go 28 per so, but just to pickup a couple more mph when you have room to do so.
Gearing becomes an issue at the higher speeds - a couple more teeth on the chain ring would be of great benefit.
So I hear the 2020 pro motor has been improved quite a bit - higher cadence support and much quieter. Now they need a 750w pack.
What's their battery offering for 28mph ?
FlatSix911
Well-Known Member
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- Silicon Valley
Presenting a motor by its motor cutout doesn't make much sense. It is just an artificial restriction.
However I see that this high speed motor is in fact listed as a 500W motor. I am assuming that it is nominal since all of the other offerings are listed as 250W. In that case it makes sense and this may actually be a viable option for average speeds in 20-22 mph range.
However I see that this high speed motor is in fact listed as a 500W motor. I am assuming that it is nominal since all of the other offerings are listed as 250W. In that case it makes sense and this may actually be a viable option for average speeds in 20-22 mph range.
Captain Slow
Well-Known Member
Looks like a nice motor and only weighs 3.1 kg, which I believe is lighter than prior models. I wonder if Giant will be using these motors on their bikes?
FlatSix911
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- Silicon Valley
The PW-X2 45 looks like the same motor design as the PW-X2 with different firmware perhaps? The PWseries ST and TE also look identical.
Captain Slow
Well-Known Member
JayVee thanks for relaying real world impressions. Geez, that doesn't sound great for battery life. I don't think I'd be happy with a bike with such limited range assuming it weighs a fair bit.
I think I'd accept 40 km range for the battery if the bike weighed 20 lbs. and was easy to pedal with the motor off.
I think I'd accept 40 km range for the battery if the bike weighed 20 lbs. and was easy to pedal with the motor off.
The PW-X2 45 looks like the same motor design as the PW-X2 with different firmware perhaps? The PWseries ST and TE also look identical.
View attachment 48180 View attachment 48181
View attachment 48182
Yeah the casing is the same and if the internals are also the same then it is just firmware. In that case 500w will be close to its peak and it is likely that the motor will be inefficient at higher speeds.
smorgasbord
Well-Known Member
- Region
- USA
Ssshhh! Don't tell the regulators that they need to limit the controller output, not the motor rating!
Captain Slow
Well-Known Member
Oh, ok that range sounds a lot better now.
Mike TowpathTraveler
Well-Known Member
Mike, I got in my email a little teaser clip from Yamaha regarding an upcoming dual suspension mountain bike. Unlike the show model all decked out in bright colors and anodizing, this one was in stealth black with little to none side views of the bike going down a trail.
Looking forward to any future info you may get regarding this upcoming bike!
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