xyster said:
Stevil, I always associated you with the cool, one-off scooters, did you just buy an x5 and it's not performing right?
Well thanks for saying so, Xyster 8)
Yep, I bought a brand-spanking-new (5304), unspoked, silver X5.
After the bench-test and runout measurements.. I was a little upset/depressed.
xyster said:
Is this motor to which you refer having balance problems when you're on the bike or scooter?
No. I clamped a front fork into my vise stand and fit the bare motor for a test spin. After I connected the throttle to the controller, motor leads and hall sensors, I introduced the controller to a 6 pack of SLAs.
POP! Don't you love the sound of discharged capacitors getting a gulp of electrons?
My cat, Hobbes doesn't get into it as much as I do
:lol:
At ultra-low speed, I could hear/count the fields firing. On throttle-up, the clicks turned into a growl. A little more throttle and the stand began to undulate. :?
I pulled my ear away from the motors' axle and twisted the throttle a bit more.. up to 75%. The whole stand was shaking considerably meow
At WOT, the shaking subsided.
The unsprung weight was totally expected.. but this had me thinking *really* hard about taking THIS motor to 60 MPH.
This is my first BLDC motor, but I have experience with a certain high performance hub-motored motorcycle. That motor shook violently at unloaded -and certain dynamic mid-speeds.. but was mostly smooth at ~45MPH (in the 1/8 mile).
This is the conundrum that I need to understand.
Patrick Mahoney- thanks for your input as well. I knew that the disconnect between static (unloaded) and dynamic (loaded) performance would trip somebody :wink: ..sorry.
How long have you had your X5?
-S
P.S. I used 6 different emoticons (and one meow) in this post. Is that a record