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Always interested in offers/projects/new ideas. Eclectic experience in fields like: numerical computing; Python web; Java enterprise; functional languages; GPGPU; SQL databases; etc. Based in Santiago, Chile; telecommute worldwide. CV; email.

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[Bike] Fixing Spyre Brakes (That Need Constant Adjustment)

From: andrew cooke <andrew@...>

Date: Wed, 1 Jun 2022 19:09:58 -0400

I have sme Spyre brakes and they're great - work well and are easy to
maintain.  But recently (after a couple of years use) I found that one
pad would slowly move further from the disk and, every few rides, need
adjusting (tightening).

This is something I have heard others complain about, too.
Fortunately there is an easy fix.

I did this by removing the caliper from the bike, but with care I
think you could do it leaving the caliper in place (but with the wheel
removed).

Here's what I did:

  - Remove the pads

  - Screw the 3mm adjustment on the side of the problem pad inwards
    (as you would to move the pad closer to the disk). Keep screwing
    and something will eventually fall out!

  - The thing that falls out (the thing that pushes the pads against
    the disk) is like a short screw with a very flat head.  Clean it
    with a rag and put a decent amount of blue locktite on the threads
    (the stuff that stops things from coming loose, but leaves them
    still able to be adjusted by hand).

  - Once the loctite is fairly dry you need to screw that part back
    in.  This is a bit tricky (and more tricky still if you've not
    removed the calipers from the bike).  What you need to do is put
    the screw inside the caliper, with the threaded part pointing
    towards where you adjust from the inside (a ruler, screwdriver, or
    lollipop stick will help).  Once you get everything lined up you
    can use the 3mm allen key from outside and "skewer" the screw,
    then, by turning anti-clockwise, screw it back into place.

    Basically, you're doing the opposite of what you did to make it
    fall out.

  - Once in place leave for, say, 12 hours to allow the loctite to
    set.

  - And don't forget to replace the pads and adjust before riding.

After all that you'll find that the adjustment is much "stiffer" and
desn't come loose.  I have no idea how long it lasts because I only
did it myself a few days ago.

Andrew

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