What do you think ?

[Deleted member 4366]

Does the Sundowner detect the actual speed over the ground when working out how much power it should deliver to the motor or some other way i.e. detecting gear/cadence and then doing a quick calculation?

The motor has a fixed power and torque curve. All hub-motors behave more or less the same. There's a maximum speed that they can reach, which depends on the winding of the coils in them and the voltage applied. The PAS levels are equivalent to throttle settings. The throttle sets a target speed. The controller has algorithms that adjust the power depending on the difference between your actual speed and the target speed set by the throttle or PAS.

You can see the power curve here:
http://www.ebikes.ca/tools/simulator.html

Select:
Outrider std motor
Custom battery, 36v 10aH
Custom controller, 14A

Then hit "simulate" and you'll see the curves. You can then play about with weights, inclines and throttle settings to see what happens.

Note how reducing the the throttle to 50% reduces the speed by half.

I'm not convinced that the curves are correct for power and torque because different controllers have different algorithms, and I know that most don't allow maximum current at lower throttle/PAS settings when at low speed.

 

[One_Box]

Put clipless pedals on and spin it at 90rpm if you want, but what's the point?

You will be attempting to propel a 20kg+ upright bike at 20mph+ with no assistance from the motor.

To me, riding an ebike like that is like hurtling down the outside lane of the motorway in a Land Rover, although of course some people do.

You would be better off with a fast hybrid such as a Cannondale Quick.

Similarly, I wouldn't buy a carbon roadie to bimble along the cycle path at 10mph.

Perhaps I have not explained myself very well.
I am not buying a pedelec for training purposes or to hurtle anywhere.
I already have a full carbon road bike when I want a blast.
I am keen however that my power input to the Sundowner is produced in the most efficient way i.e. high cadence, correct saddle height etc. just as I would on a conventional cycle.
An interesting aside, I have queried Woosh re their statement that the Sundowner is a big bike only suitable for those 5'10" and above. They informed my that some of their customers wanted to sit on the saddle with both feet flat on the ground.
Suffice to say the Sundowner will fit me just fine as although I'm only 169cm (5'7" in old money) my saddle height from the ground > 92 cm (the height shown on the Sundowner dimension diagram).

 

[One_Box]

Hi One_Box,

Cyclezee have couple of stepthru frame bikes that you might like to consider as they are within your budget

The eZee Sprint Primo LDS £850
http://www.cyclezee.com/ezee-sprint-primo.html
View attachment 9178
and the Ansmann Lightride £950
http://www.cyclezee.com/ansmann-lightride-pedelec.html
View attachment 9179

Thank you for that. Once I'm out of plaster and able to cycle again I will contact you.

 

[Cyclezee]

Thank you for that. Once I'm out of plaster and able to cycle again I will contact you.

I hope your fracture heals OK and that you will soon be back in the saddle.

 

[cjc100]

Perhaps I have not explained myself very well.
I am not buying a pedelec for training purposes or to hurtle anywhere.
I already have a full carbon road bike when I want a blast.
I am keen however that my power input to the Sundowner is produced in the most efficient way i.e. high cadence, correct saddle height etc. just as I would on a conventional cycle.
An interesting aside, I have queried Woosh re their statement that the Sundowner is a big bike only suitable for those 5'10" and above. They informed my that some of their customers wanted to sit on the saddle with both feet flat on the ground.
Suffice to say the Sundowner will fit me just fine as although I'm only 169cm (5'7" in old money) my saddle height from the ground > 92 cm (the height shown on the Sundowner dimension diagram).

 

[cjc100]

Did you buy the Sundowner?
If so, can you give a short impartial review about whether you can recommend it or not?

 

[One_Box]

No, in the end I purchased an Ezee Sprint Primo LDS with which I'm very pleased.