Eastwood said:
markz said:What is the axle flat width on the 50H?
The mxus 5kw 55H with 150mm o.l.d.
Yeah your picture says its 150mm o.l.d. for the 50H. I wouldnt mind that for the rear of a fat bike, mine is 180mm so an extra long axle would be perfect. The MXUS 3kw 45H is 135-140mm, I had to always spread my dropouts on the Townie when I had the 45H.
markz said:What is the axle flat width on the 50H?
The mxus 5kw 55H with 150mm o.l.d.
Yeah your picture says its 150mm o.l.d. for the 50H. I wouldnt mind that for the rear of a fat bike, mine is 180mm so an extra long axle would be perfect. The MXUS 3kw 45H is 135-140mm, I had to always spread my dropouts on the Townie when I had the 45H.
markz said:had to always spread my dropouts on the Townie when I had the 45H.
999zip999 said:what's this for why such a slow motor
by Eastwood » Sep 21 2021 2:44pm
This is for my Enduro clone build. Went with the 5.5T not the 6T. The reason for a slower motor is this build is more for off-road use, lots of climbing hills. The battery will be 96 V so I’ll still have decent speed. I know a guy with a similar build he has the 205 6T at 100.8 V and he hits 52 mph. (With flux weakening) I should be somewhere in that ballpark, which is plenty fast for what I’ll be doing with this build.999zip999 wrote: ↑Sep 21 2021 2:06pm
what's this for why such a slow motor
So basically lots of climbing and lots of stop and go through the city. Not much consistent higher speeds mainly stopping and going that’s why I prefer the slower motors. Would build with a 3T if I planned to drive like a motorcycle on the street at consistent fast speeds.
My Mxus 3K is great but I want to push double the power and plus it already gets too hot when I’m climbing massive hills. So the 5.5T winding should help with that plus the QS just being a thicker larger motor can shed heat much quicker.
Yep Hub sinks, F/F, check for QS205! I will push this motor to the max but try to find that balance without smoking it lol.
ZeroEm said:This is an interesting thread, worth reading. States higher voltage and higher T motor will lower heat in your phase wires.
heating is current squared x resistance. If you have half the current and twice the resistance in a "slower wound" motor, at twice the voltage, then you are producing half the heat for the same power
john61ct said:So what is the slowest winding they offer?
I'm willing to go to 72Vnom (20S li-ion 83V max)
but have no interest in "fun" or speed, utility only, all about torque, heavy cargo and steep hills
so looking for a Kv / T-count that yields top speed **under** 25mph, usually in 15-20 range. 26"
DD only in this thought experiment, no gearing.
And OT I know, but some have said to look at 273 for this use case but that's damn heavy per wheel,
or even that the 138 70H may be better than 205 ??
ZeroEm said:Now i'm wanting one, $185 + shipping. About the same price as a leafmotor. Never wanted a 3 or 4T. If I could keep my top speed 30 mph or lower at 72V would build a custom rear fork for it.
Why is the idea that lower voltage and more amps are better. After finding that 10yr old thread i'm not so sure any more.
Nice job Eastwood!
by markz » Sep 22 2021 12:51pm
To much motor for me, and to answer the question I just have a Leaf 6T 35H "1500W" which suits my needs just fine. I probably could go with a 7 or 8T for the speeds I ride and the occasional w.o.t. I do.
speedy1984 said:Haha thats myself in the yt vid