Torque

[Andy1865]

How would i find out what the torque is on a 2000watt ebike that has 56volt/15amp hour battery and 40amp hi-powered 18 mosfet controller. The wheel size is 29 by 2.25. Im 101kgs, 5'10" and eMTB which is a converted Coyote Lexington 21speed weighs in total 36kgs(bike and ekit) Any help on this subject would be helpful. Ive two 12% gradient hills to go up approx quarter of a mile long. Would this ebike get up the hills with ease of pedalling or no pedalling. Thanks. Andy.

 

[Woosh]

you will fly up 12% hills, don't worry.

 

[Andy1865]

Thank you Woosh. From what info ive given could you estimate roughly the torque id get from this eMTB

 

[tommie]

Any particular reason why you need to know this?
If i remember its measured in lbs - feet, but how you`d come to a that figure with your set-up and so many variables is another thing.
Just jump on and enjoy your bike, forget about some obscure mathematical figure!

 

[Woosh]

Thank you Woosh. From what info ive given could you estimate roughly the torque id get from this eMTB

if your battery can support the whole 40A out of the controller, 21 mph top speed going up that 12% hill at 62NM on 700C wheels.
You do need a very good battery though.

edit:
21kph, 13mph

 

[Andy1865]

Any particular reason why you need to know this?
If i remember its measured in lbs - feet, but how you`d come to a that figure with your set-up and so many variables is another thing.
Just jump on and enjoy your bike, forget about some obscure mathematical figure!

Thanks Tommie, just curious to know that was all.

 

[Andy1865]

if your battery can support the whole 40A out of the controller, 21 mph top speed going up that 12% hill at 62NM on 700C wheels.
You do need a very good battery though.

Thank you Woosh. So 62NM is the rough figure

 

[Woosh]

Thank you Woosh. So 62NM is the rough figure

yes, but torque varies with speed, highest when the bike is near stalling and drops with speed. A 2kw motor will give a practical speed range up to about 33mph on flat roads if your battery is up to it.

 

[Andy1865]

yes, but torque varies with speed, highest when the bike is near stalling and drops with speed. A 2kw motor will give a practical speed range up to about 33mph on flat roads if your battery is up to it.

So should be good enough to get me up a steep hill with ease with limited pedalling or no pedalling. Thanks.

 

[flecc]

So should be good enough to get me up a steep hill with ease with limited pedalling or no pedalling. Thanks.

And you'll be able to warm your hands on the motor at the top!
.

 

[Andy1865]

And you'll be able to warm your hands on the motor at the top!
.

So basically it will have an impact on the motor and so be aware of this

 

[flecc]

So basically it will have an impact on the motor and so be aware of this

As long as the speed stays up around that 13 mph it won't be serious. Only if you let it slow right down with 2000 watts draining though the motor will it get like an electric fire, the current producing heat instead of motion.
.

 

[Andy1865]

Well got my dream machine and what a beauty she is

 

[Deus]

Well got my dream machine and what a beauty she is

Can you let us know how you are finding the bike and what its like on those hills please.

 

[Andy1865]

If your interested Dues i can give you their website massage address

 

[Deus]

I already have a new ebike thanks Andy hope yours is everything you wanted it to be

 

[Andy1865]

I already have a new ebike thanks Andy hope yours is everything you wanted it to be[/QUOTE
With the throttle sticking sometimes still scares me even i could go out on it, but just want to be safe rather then sorry. In your opinion does it sound like the springs gone and could i fix it if needs must??

 

[Deus]

I am fairly new to ebikes Andy i have never stripped a throttle so i would not know but i have seen a few diagrams and pictures of them and they seem very simple to fix

 

[Andy1865]

I am fairly new to ebikes Andy i have never stripped a throttle so i would not know but i have seen a few diagrams and pictures of them and they seem very simple to fix

Mark it be kind if you could push afew posts my way so that can have look first before i opening the casing up. Cheers. Andy