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Turnigy AeroDrive SK3 245Kv in Europe

Well looks like there aren’t no motors left on eBay, sorry. I know some French builder who used these motors : http://www.hellray.de/shop/#!/eSkateboard-Transmission/c/15255001/offset=0&sort=normal

@LucidLunacy Seeing as I’m 110kg, would the G160 245Kv be better than the SK149Kv?

It depends on your pulley ratio. The less kv the more torque so considering your weight a lower kv rating would be best but you can still take the 245 and go with a 12/13/14 motor pulley

@crameur Alright, I’ll go with the 149Kv then.

Also if you went for the 149kv you would use a 10s or 12s setup in order to reach the motor perfect RPM

@crameur Can’t I just use 6S for the time being? What do you mean with “motor perfect RPM”?

optimal (most efficient) outrunner rpm range is around 8500 rpm. 149 kv @ 6s only yields 3308 rpm.

(kv)(voltage) = rpm

@LucidLunacy so my best bet would be the G160?
EDIT: Just FYI, I don’t mind it not being the most efficient.
I’m gonna have a 2:1 gear reduction, so I think the 149kv motor would be better for that, seeing as with the 245kv motor I’d probably be better off with a 2.5-3:1 gear reduction.

lower kv = more amp draw. More amps = more heat. Heat kills electronics.

@LucidLunacy Yeah I understand that, but with a gear ratio of 2:1, which one would be better?
My initial choice was the 245kv sk3, but i can’t find that anywhere.

my pocket book doesn’t like unnecessarily replacing parts, and i don’t like being limited to a top speed of 10 mph, assuming your going with the common 83mm urethanes

@LucidLunacy huh?
I indeed would prefer to not need to buy other gears, but if its the only solution, I guess new gears would have to happen.
I use 70mm wheels, and according to the calculator linked below, i should be able to go 21km/h(13mph).

Even though I am 110KG, would a 2:1 gear reduction be fine for the 245kv g160?

245kv @ 9s with 83mm wheels and 12T:36T pulleys will put you at 8150 rpm, 22mph top speed, and a 3:1 reduction which is plenty of torque.

@LucidLunacy As said I’d prefer to use the gears I have currently, which are 15T:30T gears, is there no solution involving those? Would I really have to buy new gears?
Would you happen to know a shop in Europe that sells pulleys?

I’m U.S. based, however http://alienpowersystem.com/product-category/cnc-kit/transmission-parts/
has 36T wheel pulleys in stock as well as required mounting for ABEC11, kegel, and oranhatang wheels

you can stay with your 15T motor pulley, will reduce your reduction ratio from 3:1 to 2.4:1 but will increase top end to 53 km/h

wheel pulley setup for 36T through Alien is roughly 50eur

@LucidLunacy Alright :slight_smile:
Would you mind helping me with some other things aswell? Any IM I can write with you on?
Things like ESC and Battery :smile:
Not gonna go with a V-ESC, since I’m trying to keep costs down, and the V-ESC is very expensive here in Europe.

I’m no expert but I have done a lot of research. My honest opinion is to 1st try and search the forms for your answers. Knowledge is empowering. If you cant find an answer to your question/s after a little research, I’d be glad to help you along with a lot of other members in the community I’m sure.

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