Noob question thread! 2020_Summer

fire it up

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I’m a bit confused.
I have a 15T motor pulley as of now and a 36T wheel pulley.
What would you recommend me, with dual 190kv on a 10s battery ?
Which motor / pulley teeth config?
Would like to hit 45kmh as you proposed!
With 15T/36T I’ll hit 60kmh while having the same power… So torque will be a lot less.
My battery will provide 45A-60A
Will I have enough torque with 2.4 ratio? I’ll never ride 60kmh tho…

Go for 15/40T

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Without wheel size it’s hard to say but I would not use under 40T unless you’re using under 96mm wheel

:arrow_up:

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He’s using 97mm wheels

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Yeah I’d do 15/40 and if it’s not fast enough (it will be fast enough) then you can change to 16/40 or 18/40 for hella cheap and easy

If you go ?/36 and you need more torque or want a bigger wheel, now it’s a real problem for you

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giphy (29)

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Whatever you want for your needs, we can’t make decisions for you. Better yet, do more reading so you know more about the variables that affect something like the gear ratio.

There is also a calculator at the top that will tell you what speeds to expect from certain setups.

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Yes I know, awesome tool!
But I certainly don’t know what torque to expect when it says I’ll hit 50kmh instead of 45kmh before.

It also shows you the specific max torque levels based on the power levels that you have input.

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Oh I used some different tool that only calculates speed!
What is motor poles and how many does my 6355 from FlipSky have?
I should probably just Google…
Sorry

14
Product page also states the torque level you should expect from the motor, before any reduction ratio of course.

https://www.google.com/search?client=firefox-b-d&q=what+are+motor+poles

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esk82

esk83

Ctrl+F torque

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Ouh… Am on my mobile… That explains it. Thanks kale!

10kales

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With anything flipshite divide by 2 to get real value.

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For real though…
If they say is 12S and 65A
Can I still push 65A with 10S only, in theory?
Or do I have to adjust amps down too then?

My small U = R * I world seems to be about to die... 36V = 65A * 0.053Ohm 36V = 3,445... Maybe it's something with the phase wires n stuff

Yes. 12S is max. 10S is lower than max.

anyone have an idea as to what makes your belt tight then loose when you spin the wheel?

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Yes!!!
Had that today!!!
Make sure your mean motor pulley grub screw is all the way screwed in…
Could be the issue
@drone001