I didn´t received any tracking - which courier?
Arrived today… will report back
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Thanks again Currently mounted the Motors. Here is a comparison of my Old TB 6374s and the flipsky ones after detection.
TB
flipsky
what i did notice with the flipsky ones is a really irritating high pitched sound at full speed. Clearly audible in the first 2 videos especially on the second. It happens always right before i stop / the highest pitch while turning. There’s a clear step from the regular to the high pitched sound.
compared to the TB motor (the clicking at the beginning is from a worn/bent shaft.)
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Bad ass turbo sound!
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It sounds more like resonation than the actual motors. If you take the motor off the mount and the sound doesn’t dissapear then you’ll know for sure
Just checked it on a mount held by my hand and the motor itself attached to nothing. The sound happens in both occasions. Its starts at around 87-89% duty cycle
Gonna test the second now.
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Update: Its just one motor. The other one sounds normal.
For me it’s the " non rust" Motor.
Edit: Definitely the motor. Did a double check on same vesc, same vesc tool, same fw again.
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I have a motor from the first prototypes and it had a magnet retention ring.
But unfortunately for some reason it fell off and it went rubbing against my motor side, making the motor stutter and had a braking effect when it fully came loose.
I hammered it back in and glued it with epoxy, but no ring seems to be better than having a ring.
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My tb motors both had one which got loose within the first 15km . After dexter epoxied them down again they’ve been fine ever since.
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Got mine today, I have been fortunate enough so non of the 4 motors I’ve got have rust on them 
Thanks @Anubis
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Can you test them for the high pitched sound i talked about?
I am waiting for vescs to arrive in a day or two. I could do that then. I have brand new maytech 6374 as well so it would be really easy to compare those 2.
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my motors are apparently still visiting all of england…
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Halfway through shipping them, FedEx became cheaper than landmark. So half of them went via FedEx expidited and half went by the slower PostNL-Landmark
You can guess which yours went by 
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Oh right I tested for the whine on a few of them by hand and there was 1 that had it, but it was the one I opened up so I bet I somehow messed it up putting it back together (Maybe bending the top washer a bit? Idk)
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You mean the gold shim or that flimsy black piece?
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