Simulate by hand the force the belt is applying. You will discover what exactly clicks eventually, just don’t break things (yet).
For me one time it was wheel pulley (bolt on) clicking on wheel hub. Too tight.
One time already messed up motors from belts too tight.
And lastly from overtightening some pneumatic wheels with no bearing spacer inside. Bearing was locking up randomly and grinding the shaft.
Take your time and discover
When I freespin the wheel there is a less settle clicking sound but its very faint. When I freespin the wheel with the belt and motor I can hear the clicking sound.
Do you think something like connecting both vescs through CAN, then the battery, then the antispark would not conjure any sparks?
My initial though is maybe it’s a bearing issue? But I’m new to this too, so don’t take my word for it
belt too tight?
So I was cutting down the caliber II trucks when I noticed this on the axle:
I just loosened the belts since they were a bit too tight
I’m trying to connect a flipsky nrf1 BT to xmatic app. I keep getting “connecting to VESC”. I already configured it using Unity Tool app. I clicked on PPM and UART and set Baud to 9600. I’m not getting data but when I clicked back on Unity BT I’m getting data. Any help thanks in advance
Yes that’s normal
So I just put the pulley on a different wheel and I still hear the clicking sound. I think I’m back to the motor shaft or the pulley. I’m using the tb pulley with collared screws, but they don’t have setscrews. Should I look into set screws?
Yes, set/grub screws are a must
**er wait, what’s the difference
Ahhh loose hair by a rotary tool 
Thank god I thought I did something wrong
Well in that case, where could I find set screws for a tb 15mm wide motor pulley?
Avoid stainless steel bolts and grubscrews
How do I know what length to get?
Oh nice, I saw a m4 5mm grub screw at the lowes near me so I’ll get that
Make sure they’re strength class 10.9 or 12.9.
Higher strength = harder steel = less likely to strip out.
