What's this weird t...
 

What's this weird thing on my disk rotor?

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Anyone able to tell me what this little widget is on my disk brake rotor? It came with a set of semi-fat wheels I bought a few months back. I was assuming it's some sort of safety thing, or a brake-squeal-killer but my googling hasn't found anything. Even Google Lens can't identify it. STW to the rescue!

PHOTO

https://imgur.com/VCa7pci


 
Posted : 23/10/2022 9:08 pm
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Stw photo insertion working as well as usual..


 
Posted : 23/10/2022 9:11 pm
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The picture isn’t showing for me but I’m going to guess it’s an e bike sensor thingy


 
Posted : 23/10/2022 9:11 pm
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Magnet for an ebike speed sensor


 
Posted : 23/10/2022 9:12 pm
 st
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It’s a magnet for an Ebike sensor.

*beaten to it ;o) *


 
Posted : 23/10/2022 9:12 pm
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Superb, thanks all!


 
Posted : 23/10/2022 9:14 pm
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I'd be more worried about the wear pattern on the disc, looks like the pads are sitting too low and wearing the spider away and not sweeping the top of the rotor.


 
Posted : 23/10/2022 10:31 pm
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Is it a 203mm disc on 200mm adapters?


 
Posted : 24/10/2022 12:19 am
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Grass needs cutting


 
Posted : 24/10/2022 12:32 am