• Hi everyone, new here and also quite new to bicycle maintenance! I bought a 2nd hand bike last summer and recently decided to try and learn how to maintain and repair some things myself.

    It has these quite old (and temperamental) cantilever brakes. Recently they've become ineffective so I'm going to try and adjust them, and thought I'd replace the pads while I was at it.

    Because of lockdown I've been trying to find suitable replacement pads online, but I've struggled to identify ones which would work with these brakes. I bought a pair of threaded post pads (which is the type I think I need), but the post itself seems too short to fit onto the levers. In the attached photo, I've placed the old pads at the bottom and the new pads at the top. The post runs through a connecting arm, which then is fixed to the lever (see other attached photos). The connecting arm is so thick that when placed on the post of the new pads, there is not space to fit all of the washers and it doesn't tighten securely.

    So, apologies if this is a stupid question, but was wondering what your suggestions would be? I've tried to find other cantilever pads online, but it's hard to tell whether the post is long enough by looking at a picture, and most don't seem to have dimensions listed. Alternatively, I suppose I could just try and replace the pads themselves, and use the old post to connect it to the lever? Again I've found it difficult to judge online whether the pads I've seen will be compatible with the post from the old pads. As I say, apologies if this is a silly problem, but any advice would be really appreciated! (If helpful, the old pads are Shimano, just under 55mm wide, and the width of the post is about 5mm).

  • No advice on replacing the pads I’m afraid, but you’ll improve the current performance a lot by giving the rim and pads a good scrub with a clean cloth and water, or ideally pink Muc Off. As said above, the pads still have lots of meat on them, so you might’ve built up grit or contamination on one of the braking surfaces.

  • Thank you, will make sure to give them a good clean before fitting them back on.

    @si_mon628 - thanks! I'll put them back on for now and adjust the cable, then try and find the correct pads for when I do need to change them.

    Thank you both for your help!

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