I got a mountain bike from a neighbour, who obviously hadn't maintained it.
I've never used disc brakes, which this has. They're Promax, can't tell more than that, The only thing that might be a model number is "4C" or 4G" near a mounting bolt.
The rotor has "LZ" and "160" on it.
Looked on their website, they only have info about current models, no mention or info of older models.
So just winging it on generic info.
I cleaned them up and the cables are good. They pads made good contact when stationary, but when I gave it a ride, they were very weak, would be unsafe on the road or any hill.
I wiggled the pads out and had a look. They were pretty rusty, but the pads are 2mm thick.
When I did that though, there was also a small magnetic button I found loose, just one, no idea if it's a loose part of the brake, if so, where it should go (which I why I'd really like to find the manual).
(See photo with two pads and the button.)
The button fits very loosely in the hole in the back. But again, only one-- on the wheel side.
So, can anyone advise: do I need new pads? How do I adjust them? And what about the magnet?