I'm in search of a bottom bracket torque sensor for a 68mm bottom bracket with a spindle that is >=153mm long. Any shorter and the crank arm will smack my motor.

I managed to find this: https://www.hyena-ebike.com/e-system/sensor/

The ST-SQ-2 version listed on that page is perfect for my needs, but there doesn't seem to be any way to purchase one from that site and my Google-fu is failing to find any retailers.

I also found this: https://www.cycmotor.com/product-page/torque-sensor-bb-for-68-83mm-100mm-bottom-bracket-version

It doesn't state the spindle length on the page, though, so I don't know if it'll work.

If anyone knows how to get the first one, knows what the second one's spindle length is, or knows any other options I can go with, I'd appreciate it.