Hello everyone, I have a problem with my Brompton front brake. The calliper is sitting too high to allow sufficient adjustment of one of the break block's height, so one side in particular is almost making contact with the tyre - see photo. The other side is much less of a problem. Any advice or assistance will be much appreciated.
Brompton brake problem
- Thread starter pmun
- Start date
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12boy
Guru
- Location
- Casper WY USA
Sometimes you need to loosen the nut holding on the brake and adjust the mechanism so both pads touch the rim at the same time. A stock Brompton brake sould have brake arms long enough to miss the tire.
mickle
innit
- Location
- 53.933606, -1.076131
It looks like the axle isn't fully settled in the drop-out. Loosen the nut on the offending side, pull the wheel over by grasping the rim and the frame together whilst tightening the nut.
rualexander
Legendary Member
Not sure about Brompton calipers but on normal dual pivot road calipers you can usually adjust this problem by turning the small allen screw in the top surface of the caliper arm, not sure what it's called.
Also, on another subject, your rim looks pretty worn, looks to be a bit concave, might be wise to check it.
Also, on another subject, your rim looks pretty worn, looks to be a bit concave, might be wise to check it.
Kell
Veteran
- Location
- High Wycombe/London
There is an adjustment screw on one side of the calipers. It pushes against one of the calipers and helps you align them...
I can't remember which way to turn it off hand, but it should become evident with a bit of trial and error - also, giving them a clean might help them become a bit less 'sticky'.
Mine took a while to get right, but have been pretty good since.
I can't remember which way to turn it off hand, but it should become evident with a bit of trial and error - also, giving them a clean might help them become a bit less 'sticky'.
Mine took a while to get right, but have been pretty good since.
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T4tomo
Legendary Member
this is all true, but will that balance adjustment solve the OP's problem? I'm not sure it will, it just levels distance from pads to rim on both sides,but in same arc as putting the brakes on.
more likely..
although the balance screw might also need some work after this.
. i'd be tempted to loosen both sides off, clean the drop outs in case they are gunked up, and and reseat the wheel.
Kell
Veteran
- Location
- High Wycombe/London
Possibly not - it depends how off-centre the caliper is. If it's massively over to one side, then it may be pulling up and in...
But more likely the wheel is slightly off-centre.
Or a combination of both.
But more likely the wheel is slightly off-centre.
Or a combination of both.
Last edited:
- Location
- The TerrorVortex
I'd check that the front wheel is properly in the forks first.
What@mickle doesn't know about Brommies isn't worth knowing
What@mickle doesn't know about Brommies isn't worth knowing
Kell
Veteran
- Location
- High Wycombe/London
To be fair, it's quite hard to be that far out on the wheels as long as the tab washers are seated properly.
