John in CR said:
With that kind of load you need to stop playing with the little kiddie motors, as well as learn to use small diameter tires or you'll continue to waste time and money, and endure the embarrassment of the "walk of shame".
I feel what you are saying.
That is why I liked the mxus 3000W, but it was in a 26" wheel.
jpacadd said:
Could have just bought a BBSHD in the first place
I do have a Cyclone 4000W
The problem as to why I did not install it. The crank/fw arm had the pedal hole bored out, a problem I was having for awhile, probably due to laziness and not keeping up with the tightening/checking every so often. Use of Loctite solved the problem of loosening pedal that would mangle up the arm thread/hole. Ontop of that, I am too cheap which is costly, to order a full crank. Had fears of more pedal problems. I did not like the noise of the Cyclone, but I think I would bare it now. The controller, I dont know the LVC of and cant remember what it was, tried fooling around with it, bluetooth was over my head. Big bad winter is over, so will work on the mid drive fat bike over the next few months.
dogman dan said:
Not surprised by a few of those roasts, but you'd think the big muxus would have lasted, even on 72v 40 amps.
I got kind of tired of roasting motors, which I did pretty often when I ran 72v. That 3000w power was nice, but I only got away with it in the cold winter weather.
Best advice so far, going to 20" rim. Worth learning to weld to make custom bikes with room for a big scooter wheel back there, or at least a 20" bike rim. It really works, John taught us that. see the sig for the frame I made for 20" rear motor.
I will tell ya exactly where I think I roasted the MXUS. Up this hill, no chain at the time.
https://www.google.com/maps/@51.0612531,-114.1563533,3a,75y,221.8h,76.79t/data=!3m7!1e1!3m5!1sLuryEwhcQ9Qp4Gf8BN4Tqw!2e0!6s%2F%2Fgeo3.ggpht.com%2Fcbk%3Fpanoid%3DLuryEwhcQ9Qp4Gf8BN4Tqw%26output%3Dthumbnail%26cb_client%3Dmaps_sv.tactile.gps%26thumb%3D2%26w%3D203%26h%3D100%26yaw%3D114.84002%26pitch%3D0%26thumbfov%3D100!7i13312!8i6656
It was my stupidity. After a long day of cruising around, I decided to go up that hill. I was tired, I was sweating, it was a hot hot day and all I wanted to do was hit the DQ for some ice cream.
But yeah, the smaller motors would burn I knew.
I thought that fat front 9C clone was holding up well, even though it was 36V 26A I liked I had to pedal up the hills, guess my laziness did me in again.
DogDipstick said:
What is an "oloop"? connector? Never heard of that.
If you mean "ring terminal".. I use them for my hub for over 8Kw and the wire is only 3mm^2..... Work fine for me.
Yes ring terminal. Its automotive style.
Ring terminal
https://www.canadiantire.ca/en/pdp/gardner-bender-c14-107-ring-terminal-0520203p.html#srp
John in CR said:
That kind of riding with MarkZ's load requires an electric motorcycle.
Which cant be used on pathways, sidewalks, brought on trains/buses. I actually dont ride fast, like to stay under the "radar".
I will have to lace the new leaf into a 24" bicycle rim probably go moped rim (19"), or weld up new rear dropouts for smaller dia.
DogDipstick said:
How long does it take to roast a motor?
I got 600+ mi on my LeafMotor Clone ( qs 205 v1 35H) at over 3.3Kw contin.. 50 A @ 80v~.... and peaks over 7500w...easy.. When is it going to KABloom and what will it usually take out with it?
I do have thermal rollback set at 180*-ish... but I dont hit that unless really big hill. Close, I run usually round 140* or more...
Depends, stall motor on a hill, wont take long. Not sure the dynamics of the roast on the last one. I guess I felt the power less a day before, but going up a slight hill I was not increasing speed on a full battery so I knew.
john61ct said:
You're saying 400lbs is a lot?
Is there a black and white boundary line? If so how is it defined?
Well for a human being, its obese so its a lot!
6'5" should be at least in the upper 200's but ideal say 250 and under, fit status, low 200's.