OP
OP
- Location
- Somewhere wet & hilly in NW England.
CX9's - stock pad carriers. Only pads have been changed. Set up is as per spec' inc' pivot bolt torque.
Rim brake squeal - at wits end
- Thread starter SpokeyDokey
- Start date
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CX9's - stock pad carriers. Only pads have been changed. Set up is as per spec' inc' pivot bolt torque.
Mr Haematocrit
msg me on kik for android
- Location
- Out of the saddle
Ahh cross brakes.. not got much experience with them sorry, but good luck on addressing the issue
MontyVeda
a short-tempered ill-controlled small-minded troll
- Location
- Lancaster... the little city.
when i was a kid, there was a lad next-door-but-one who claimed his squeaky brakes were special 'sonic' brakes, which negated the need for a bell... maybe you have those? 
MrJamie
Oaf on a Bike
When I had squealing front brakes (after about a year of being okay), I tried toe in/toe out, tighter/looser calliper mounts, a number of different pads, DIY wheel trueing, cleaning rims, even sanding pads and rims rims to alter the surface and only sanding the rims helped and only then for a ride or two at a time, which for a number of reasons is a terrible solution and since I had disc mounts it didn't take much to go in that direction. From what I understood reading about it, its normal for rim brakes to squeal, just usually outside of our hearing range - the pitch of the sound affected by the surfaces and angles/pressures etc how things vibrate so many things can alter it good or bad. Im sure I even read about people greasing their rims slightly to solve it 
Rohloff_Brompton_Rider
Formerly just_fixed
Have you tried a rim cleaning block? Sounds like you have some glazing going on. Some very fine emery cloth will do, but rim cleaning blocks are better.
Pale Rider
Legendary Member
If the pads/blocks are flat, cutting a couple of slots in the braking surface may help.
MontyVeda
a short-tempered ill-controlled small-minded troll
- Location
- Lancaster... the little city.
...
Im sure I even read about people greasing their rims slightly to solve it
I think I'd rather have squeaky brakes than greased rims
OP
OP
- Location
- Somewhere wet & hilly in NW England.
RS30 wheel tried today and still squeals, then.......
.....tried a cheapo 72mm offset post V brake cartridge/pad.
Only managed to try one medium sized hill but it was quiet!
Have a long downhill to try out on Wednesday - see how we go.
If it is still ok I will order some better quality V brake cartridges/pads.
Having read Sheldon's website it would appear that pads with a longer tail can stop vibrations - maybe TRP mini-V's should not come with road cartridges as stock?
LBS providing first class support too.
.....tried a cheapo 72mm offset post V brake cartridge/pad.
Only managed to try one medium sized hill but it was quiet!
Have a long downhill to try out on Wednesday - see how we go.
If it is still ok I will order some better quality V brake cartridges/pads.
Having read Sheldon's website it would appear that pads with a longer tail can stop vibrations - maybe TRP mini-V's should not come with road cartridges as stock?
LBS providing first class support too.
OP
OP
- Location
- Somewhere wet & hilly in NW England.
Finally! Squeal has gone - fitted Ashima 4 Function V Cartridges and peace reigns!
Brakes are now smooth and very powerful - presumably the extra contact surface over the stock road brake calipers makes them a bit stronger - not that they were lacking much anyway..
Brakes are now smooth and very powerful - presumably the extra contact surface over the stock road brake calipers makes them a bit stronger - not that they were lacking much anyway..
