Yamaha theory of operation help.

Jaspy

Member
Jun 9, 2021
113
108
Bea Sea Canada
Could someone explain to me how the rear hub magnet on Yamaha branded ebikes works. I am not familiar with every single Yamaha model but the Moro Pro has a rear hub magnet that completely encircles the rear hub. The magnet itself is circular and slip’s onto the splines on the magura center lock hub. The magnetic pick up sits on the frame extremely close to the magnet assembly. I disassembled the plastic housing to see what’s inside and I found a one piece circular magnet. I checked to see if there was any gaps in the magnet field and there was none.
How does this work? It’s not like a single small magnet that passes the sensor every full wheel rotation.
I bought a new wheel set with DT Swiss 350 Hybrid 6-bolt disc hubs, 32h. I also bought new Magura disc’s to run on these.The rear disc has a place for a magnet but certainly not like the stock centre lock continuous magnet.
So back to the original question, how does this set up work ? 888BA625-91AF-4A1A-AD48-21C4F0F11B1A.jpeg
Magnet removed from plastic housing that slips into the splines of the hub nut.

5745E8F8-EF2C-48C9-989F-F0C1332868B4.jpeg


C8A3DB36-C85B-409C-BA6B-848135A78EC5.jpeg


456D1DC7-8E62-4CEF-A905-09D0D6553A8B.jpeg
 

Jaspy

Member
Jun 9, 2021
113
108
Bea Sea Canada
For a solution and update see this thread. Cheers 🍻
 

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