Reality Check

[Lessss]

Motor power: 48V 500W/750W
Rated voltage: 48V
Rated torque: 11.6 N.m
Rated turning ratio: 410 rpm
Tire: 3.00 X 10
Max speed: ≥ 50km/h
Batteries volume: 48V 20A
  b) Over current: 25±1
Range (one full charge): ≥60km
Rated load capability: 75kg
Gross weight (including batteries): 85.5kg
12) Rated load capability: 75kg
Climb ability >15


Now is my math wrong here but 410rpm with a 10inch wheel =20Km/hr??
If it can go 50/hr and the charge lasts for 60KM it'll last an hour and a few minutes?

11NM can climb 15 with a cutoff of 26 Amps?

So does this sound like it too good to be true?

 

[lemmiwinks]

Hee hee hee, "Hotchick power"! :lol:

That thing wouldn't pull a hat off your head.

 

[TylerDurden]

Something sure seems wacky...

IF: 50km/h = 31.25mph

to go 31mph at 410 rpm, wouldn't the tires need to be approx. 25" tall?

:?

 

[xyster]

And a 406 at 24 volts 20 amps produces almost 30nm of torque.

http://www.ebikes.ca/simulator/

 

[Lessss]

Could it be a typo 4100?

I do find the 75KG loading capacity hilarious though.

 

[lemmiwinks]

I do find the 75KG loading capacity hilarious though.

I wish I weighed 75kg again! Need to lose about 7-8kg to get there but can't see that happening over winter, probably the opposite

 

[Malcolm]

Looks like your sums are based on a 10" diameter tyre, but its a 10" diameter rim. An 18" diameter tyre would give you 35 km/h. Like Lemmi says: still wouldn't pull the skin off a rice pudding. :wink: