Pedal sensor

Nealh

Esteemed Pedelecer
Aug 7, 2014
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It will be a torque sensor, you have to buy a TS BB.
 

Nealh

Esteemed Pedelecer
Aug 7, 2014
21,081
8,616
61
West Sx RH
My bad I was wrong, it indeed appears to be possibly a speed controller (maybe) with 5 PAS levels. Most propriety control systems only use 3 wires and 4 wires is the domain of TS control systems.
I'm pretty sure you will find it hard to find a 4 wire PAS disc /sensor and the only route is likely via their website.
 

Nealh

Esteemed Pedelecer
Aug 7, 2014
21,081
8,616
61
West Sx RH
Can we see a pic of the BB/crank area from the side and underneath pls.