Diagnose brake feeling
Posted: 19 Jun 2014, 13:20
I am thinking I know what it probably is but thought I'd get a second opinion.
When I bought my bike the brakes seemed pretty good. Not the initial bite the Kwack had, but still strong and more than adequate.
I then fitted new (to me) forged wheels, which came with new (to me) brake discs.
The wheels and discs had only done a tfew hard miles, but looked brand new still. No marks on the wheels at all, and the discs looked fine.
After fitting them, I was sure the braking performance wasn't as good, but as it was winter when I switched (and constantly wet) I couldn't be sure.
I had the impression of a slight vibration when braking.
This is now definantly what is happening now it's finally dry again and I've been able to do some hard braking.
It even showed on my bike cam when I braked as heavy vibration.
I notice that when filtering and riding very slow, if I squeeze the brakes slightly I get a bit when it brakes, then there's not much firction, then brakes again. etc.
I am thinking a warped disc or somethign like that. When hard braking it kind of feels like it fades as well as the vibration. Another option was glazed pads, but I don't think that would cause the vibration.
It's annoying if I need to replace discs.... I still have the old wheels, but it means changing shims for the ABS sensor, different spacers and changing tyres.
When I bought my bike the brakes seemed pretty good. Not the initial bite the Kwack had, but still strong and more than adequate.
I then fitted new (to me) forged wheels, which came with new (to me) brake discs.
The wheels and discs had only done a tfew hard miles, but looked brand new still. No marks on the wheels at all, and the discs looked fine.
After fitting them, I was sure the braking performance wasn't as good, but as it was winter when I switched (and constantly wet) I couldn't be sure.
I had the impression of a slight vibration when braking.
This is now definantly what is happening now it's finally dry again and I've been able to do some hard braking.
It even showed on my bike cam when I braked as heavy vibration.
I notice that when filtering and riding very slow, if I squeeze the brakes slightly I get a bit when it brakes, then there's not much firction, then brakes again. etc.
I am thinking a warped disc or somethign like that. When hard braking it kind of feels like it fades as well as the vibration. Another option was glazed pads, but I don't think that would cause the vibration.
It's annoying if I need to replace discs.... I still have the old wheels, but it means changing shims for the ABS sensor, different spacers and changing tyres.