| Author | Message | ||
     Xb12s_streetdemon |
it has happened to me a few times. when i am slowing down from a high rate of speed and i drag the rear break, it HOWLS. a mid frequency vibration. any ideas? does something need to be tightened? | ||
| Hdwrenchtx |
a friend of mine has this ever since he had a rear tire changed. i havent had a chance to look at it yet | ||
| Xelerator |
Same here from day one, the whole bike gets in resonance, 09-CR. | ||
| Joshinga |
I get it if I go screaming down the hwy for about 20-30 min straight. It maybe just some sort of buildup on the rotor. | ||
| No_rice |
its coming from the moisture and little crud film that the exhaust dumps on the rotor and pads. if you let up on the brake and re apply when it does that the sound usually goes away. but some good hard braking seems to help it. | ||
| No_rice |
added note, it kind of contaminates the pads for lack of better explanation. basically puts a glaze on them. you can also take the pads out and drag them across the cement a few times to sand the glaze off the pad. | ||
| Craiga |
I get it, A LOT, only since the tires and pads were changed. I don't have a stocker dumping the crud on the rotor though. I didn't have the problem with the first set of pads. | ||
| Arcticcr |
Try changing pad brands. The vibration is directly related to the friction coefficient or Mu of the pads. High Mu or greater friction produces greater vibration, just a natural of the beast. Unforgivably, if you go to a lower Mu, you will also see a decrease in stopping performance. ~ J | ||
| No_rice |
hmm, ok. ive just always been able to make it go away very easily and not show back up except with rare instances when i get alot of condensation out of the exhaust. | ||
| Ratbuell |
Heat it up. USE the brake, don't feather it. My CR will do it the first stop or 2 after a coldstart (condensation), but that's it. Once the bike (and the brakes, and the rider) are warmed up, the howl goes away. And when I say "USE" the brake...I mean, if it makes the noise all the time or more often than not, get the rear to the point of lockup...a couple of times. Heat it up. Bed the pads. It will go away. People bitch about the rear brakes being worthless on these bikes, but I can J-slide any of mine (tuber, XB, or 1125) any time I want if my right foot gets heavy enough. She won't let me play on her Blast enough to set it up  | ||
| Foxy |
check the rear brake out. There's no return spring on the lever . It just flops about at will. | ||
| Ratbuell |
Um...there's no return spring on any of our bikes' brakes, front or rear. Fluid pressure is what returns the pedal/lever. If your lever is 'flopping', your fluid is low or you have another problem. | ||
| Foxy |
every other bike i've owned (non buell) has had a return spring on the rear brake pedal. It doesn't make any difference whether the brake is hydraulic or cable operated , a rear brake pedal usually has a return spring. (Message edited by foxy on May 23, 2010) (Message edited by foxy on May 23, 2010) | ||
| Ratbuell |
That's funny. Every Buell in our garage, and every HD I ever sold...no return spring. | ||
| Chevycummins |
I notice mine starting to do this at 6,000 miles, it would only make noise when not on the brake. The brake lever seemed like it had too much free play also. What I found on my bike is the piston in the master cylinder was stuck. The brake was on most of the time, took the cylinder apart and cleaned the gunk off the cylinder walls, now it works properly again. Get the rear tire up off the ground and check to see if the brake is dragging, mine was worse when hot just after a long ride. Oh and the lever returns normally now with the return spring that is in the master cylinder. | ||
| Freezerburn840 |
Mine just needed some degreaser I sprayed the whole unit caliper, brake pads and scrubbed the rotor. So far so good this morning. We will see when I go back home today. Back home the unit heats up and more crud spits out on the rotor, caliper and pads. | ||
| No_rice |
as i said, i havent ever had much problem with it, but i use my rear brake most all the time... | ||
| Steve899 |
Rear Brake? Why would you use it? | ||
| No_rice |
thats kind of like asking why wouldnt you? and that conversation has been beatin to death  (Message edited by no_rice on May 25, 2010) | ||
| Steve899 |
I'll leave this thread with one thought, weight transfer, good luck on your dead horse. | ||
| No_rice |
yep, weight does transfer. and 2 brakes are better then one... that was simple enough. unless one of those wheels is off the ground there is no reason not to make use of all the braking force you have. weight transfers in my cars too, so that makes the back brakes usless and we should disconnect them and only use the front...? if things stopped better with just one brake think off all the money we could have saved over the years when building vehicles... and i dont have any problems with dead horses...  | ||
| Steve899 |
Cars , lots of weight on the rear wheels, brakes are good to have. 700lb harleys lots of weight on the rear, brakes are good. 390lb Buell 1125r , big ft brake and small rear brake, I think the engineers knew something when they designed it.Rear wheel doesn't have to come off the ground under heavy braking, but it gets very lite if you use the rear brake under strong braking it may lock. static friction vs dynamic friction, which do you want with your rear wheel, I'll use ft brake only in all braking situations, and yes I save alot of money not buying rear brake pads, which helps me afford all the ft pads I go thru. Dead Horse put down again! | ||
| Jdugger |
Save your breath Steve. I've been down this conversation before, and the only thing you will get from it is the realization that should a panic stop ever be required by a lot of guys here, one hopes the lord is with them. | ||
| Steve899 |
Jdugger, well said, I'll leave everyone with this, there are always opinions, just consider the source. as Peter Fonda said " Ride hard or stay home" | ||
| Froggy |
I do 80% of my braking with the rear, and have no issues stopping. | ||
| No_rice |
lmao, hmm. i have yet to "need" to replace pads on any of my buells front or back and i by no means run at the back of the pack on the track... cool that rhymed... "it may lock"... so...? how else do you back it into a corner? ive had the ass end locked up with a knee on the ground before. its not that hard to deal with... you still have all that front braking your so worried about so wheres the problem? it may slide around?!? so? same will happen with a very light or in the air rear. and i have had to do my fair share of panic stops. never had the slightest problem. slid it around plenty of cars and deer in the 25 years ive been riding. i guess some of you should go riding with me someday and keep trying to use only your front brake. we will see how long it takes to fold the front end under hard braking on the terrains i ride on/over. it is always fun to see as long as no one is hurt and we dont have to drag the bike home...    | ||
| Jdugger |
Well, certainly my statement presumes normal pavement. I don't enjoy riding sport bikes on dirt, gravel, or other loose surfaces. There's a much better hammer in the drawer for that. | ||
| Jdugger |
> I do 80% of my braking with the rear, and have no issues stopping. That's cause you ain't going that fast to begin with | ||
| Steve899 |
Jim , now that made me laugh! | ||
| Brumbear |
Do what you like I could care less but there is a reason that front one is SO much bigger ten the tiny lil back one  |
