Glazed Brakes

[xxdcmast]

I think the previous owner of my bike might have ridden the back brake too much and the pad may be glazed over. The brake works but not very well. I bled the brake lines to make sure there is no air in them.

My friend thinks that I the brakes are glazed. He recommded changing the rear rotor and pad. Im just wondering if changing the rotor is necessary. Or could the poor brake performance be something else.

[Degsy]

Scuff the pads up with a wire brush and have the rotor sandblasted or gently scuffed with emery cloth. Then reassemble everything and bed them in together.

[richw]

I use a vibrating finishing sander on the rotors.

rear brake who cares

also degease the f out of them also

[ZX-12R]

I use a wire brush and emory cloth as well. Just a quick once over to rough everything up and you are good to go.

[legalspeed]

what degsy said.

I ran the same set of pads on my race bike for two years, STUPID!

At Miami/Homestead I nearly nosed first into T3, the cornerworkers were eyeballing me pretty good. My buds asked how long the pads had been in, then they gave me a serious look. After being directed to trackside for new pads, my expert buds had me do exactly what degs told you.

My brakes worked fine after that and I was able to compete.

[xxdcmast]

So wire brush the pads and emery cloth the rotors. What is bed them together? How do I do this.

[Suf Daddy]

Snoooze with them.

or just use them firmly for a few times as you drive around.

Each manufacturer of pad material has their own bed in process.

Some want 5 quick 80 - 10 MPH stops.

Others want a gradual easy going around town for 100 miles..............

Its what the manufacturer wants.

Bedding in is the process of mating Mrs. PAd to MR rotor.................

Chamfer the pads edges too.


Bevel them slightly so they have an angled (not square) edge to where they meet to rotor. Just a wee bit.

-Suf Daddy

needs to do brakes too down to the backing plate.

See my cars pads:

[legalspeed]

Originally posted by xxdcmast
So wire brush the pads and emery cloth the rotors. What is bed them together? How do I do this.

Yes.

I brought the bike up to about 20-30mph and slammed the brake lever shut, about 4 times before they grabbed. Be careful, the first time or two your brakes will be almost non-existant, then all of a sudden they will have stopping power.

suf is correct, I did not have the time between races to follow manuf. specs. nor could I exceed 30mph in the pits (speed limit is 15).

Racing:
What I was told: brake pads are like tires and fork oil, you only get a limited amount of use before performance drops off. I was gauging my pads by looking in the cali's and seeing how much material was left, STUPID! They heat cycle. With each heat cycle they dgrade, albeit slowly, so slow you don't really notice it.

Hope this helps in your racing effort.

[xxdcmast]

This isnt really for racing. This post was actually directed toward my street bike. But good information anyways. Thanks.