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Thread: Brake Chatter

Created on: 04/22/10 01:36 PM

Replies: 81

Hub


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Joined: 02/05/09

Posts: 13719

RE: Brake Chatter
07/06/10 9:20 PM

My info is useless without TT's bike running back to the same chatter. So, we just sit and wait. And without his input, I am going to run through a canyon I know will chatter the bike. Because the bike has the brake pads all over the card shuffle, I need to reintroduce the chatter or see if she is gone! If I wind up the same as yours, and the same as TT's; I spend the same amount of time on the brakes as you, blue, I believe the chatter will come back.

Thanks for the input, blue. You know I am baiting that boy. But, I think I have my answer without it being answered. She chattered right back as fast as blue's massage... We all 3, massage some brake pad dust theory.



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Grn14


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Location: Montana

Joined: 02/25/09

Posts: 15511

RE: Brake Chatter
07/06/10 9:47 PM

So if he never shows back up...I'm ass out?(REMEMBER my Bro...mine doesn't make any noise).


* Last updated by: blue07 on 7/7/2010 @ 8:30 AM *

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Hub


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Joined: 02/05/09

Posts: 13719

RE: Brake Chatter
07/07/10 1:20 AM

No, blue, his choosing. To me, it does not matter like everything else, I listen to someone and that is my choosing. You answered my question, blue. The answer is the same with all 3 of our bikes, (maybe). Chatter came back on his or TT would come back, tell us different. It's not about some ego. It's about solving a problem someone butts enough heads together you have a team thinking in one direction.

If pride and all that shit gets in the way of solving 3 variables, it's not really my problem. I've solved enough bike problems. How come you report your outcome, blue, and others don't? I'm not about to throw something in the mix I am still braking-in pad to disc rematching.

My tire break-in run, was to find some off ramp with minimal traffic so I could coast to a stop. I may have tagged the brakes twice and by the time the stop sign was coming up, I had traffic on my neck. Stopped enough, where I pulled over with dead engine and clutching it till it stopped.

Was I hauling? I had to! This was haul and coast to a stop, check the disc heat. I took my time taking gloves off. Felt the discs and they were cool to the touch. That meant there is a pad's edge, just enough to drag that wheel. I had that wheel spinning free before I started the work.

Last tire change the freewheeling had all matching pads off the disc. Now, I have that variable of the one caliper pad shuffle. Same old assembly on the tire change though; I'm still dragging but with cool discs and no, no noise either, blue.

In other words, I am not broken in yet. New tire, new fork oil, no new brakes or any surface prep but a wipe off of the job with all the tire mount spraying all over the place. No squeak. No chatter. No matter. Huston has new tire and as a matter of fact, I'm waiting for the final horse whipping of the pedal dipping and if we do not have chatter, I am wrong about fork flex but can fell it behind curtain #2. I think I mentioned that earlier, right?

That oil color changes the 3rd variable that may cushion that fork chatter. I changed not a screw turn because of the harsh chatter you can see; me on the brakes and the camera's hopping with old tire, the old fork oil, the freewheeling, old brake pads. So, did I change one variable at a time to narrow down the chatter? No.

I went whole hog on repacking the steering bearings, the fork oil, a new tire, the one brake side shuffle. Do you see how many variables I am up against, I cleared my chatter, it don't matter. I cannot give you a valid answer, blue.

TT said his new front tire did not clear the chatter. Are we clear, TT and I can eliminate the tire? Are we seeing without TT's input, it's not me closing in on a variable. But wasn't, wasn't someone concerned about, who is doing what to whom on the tire/pads/forkit, just fork it. I'll get back to you, blue.

It's only a bike to me. I'll enter my service mileage right now, see how long that fork oil signs off, or the brake pads, or the tire? I'll know soon on the brake pads. Give me a mileage before it came back on you, blue? This way, I have under 100 miles on the whole front end now. I'll add that to the mileage, or did you say it took about that much to bring the chatter back?



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Grn14


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Location: Montana

Joined: 02/25/09

Posts: 15511

RE: Brake Chatter
07/07/10 8:30 AM

Well...it wasn't very much(mileage),maybe 5 miles!Probably less...that's the disappointment of trying to get er working right..especially when it takes a bit of houdini manuvering with my hands.Ah well...I can live with it now...till I replace pads again.At least eliminate THAT variable.

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Hub


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Joined: 02/05/09

Posts: 13719

RE: Brake Chatter
07/07/10 9:49 AM

5 miles? Interesting.



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Hub


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Posts: 13719

RE: Brake Chatter
07/07/10 11:00 AM

Thanks for the input, blue. So tell me, how worn is the front tire? You are in a great position to do one of two variables. Either change the tire now, leave the brakes alone or change fork oil, leave the tire alone. It's either or, if I feel nothing but that slight behind the cushion of that wheel coming around all balanced. It is also clean of any, 'step' or 'cup' as a variable of the old tire. I had one super chattering bike, right before this replacement set.

Compression Canyon I call it, is a good indicator coming off that rail and you have to brake hard for a right hander. The tiny blip on the lever should have exposed itself, too. No way hose say is hose out the fork oil and with TT's input on the new tire, I'd drop the fork oil first, blue.

See what or who is getting in the way once that chatter begins? It sure is not the brakes if we, OK, now I am out of the loop. I have yet to feel any severe chatter after the snake tire break in. And you know it was 100% front brake apply from corner to corner.

I had to literally let go of lever, reapply the brakes, it was that bad before! Now, I dab the brake knowing where the bike hammers my toofillings, I have nothing to report back; but the blanket feel at the wheel. I do think it begins to carve the obvious 'step' or 'cupping' to the front profile, when the wheel creates the step from the first 360° turn of that wheel.

If I listen to others chasing my tail is sniff up theirs? You see the input we are hearing or not hearing? Now you are on your own to piece the puzzle together, blue. I blew my chase all to hell but after that loop I have (((poop))) to report butt just peeeeeeeeeeeeeeeeeeeeeeeee along on the smoothest bike I forget it's running.



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Grn14


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Location: Montana

Joined: 02/25/09

Posts: 15511

RE: Brake Chatter
07/09/10 12:36 PM

Well the front tire is doing fine.Fairly new still.The last high velocity braking I did was,well,high velocity.And I tried to use the front brake way more to slow up than I normally would have,just to see what it would do moving so fast and slowing more aggressively than usual.Funny thing is...when I used it again right after that,when it had cooled some...It was VERY smooth.Later on,like LATER the same day....when coming to a slow stop again in traffic,the pulsing was back.Not QUITE as pronounced as before...but still there.She slows smooth if I apply "medium" braking.It's okay for now....one day in the future I'll replace my rotors and pads.It's all good.Sometimes I almost DO forget she's runnin!Sweet bikes these 14's.


* Last updated by: blue07 on 7/9/2010 @ 12:37 PM *

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