| Author | Message | ||
     Dr_greg |
I installed the Lyndall Gold pads 3 months/5K miles ago. In the last few weeks a pulsation has developed; very annoying when coming to a stop, since the last "pulse" usually stops me with a jerk. At speed the brakes feel a litle "gritty" as the pulsing is at higher frequency. From the archives it seems that the STOCK pads leave a buildup on the rotor that the Lyndall pads tend to remove. Seems like I have the reverse situation. Anyone ever experienced this? The runout on the disk is 0.015 inches...within spec. The rotor looks visually okay to me; just like the many other rotors on my other bikes that don't pulsate. | ||
| Rsh |
Have you checked to see if your rotor floats freely at the six attachment points. All it takes is one point to hangup and it will effect the braking performance. I try to check mine ( using two hands grab the tire on each side of the rotor attachment point and deflect the rotor with your thumbs checking that the rotor will deflect and that it springs back) at every oil change. If necessary I clean the attachment points with warm soapy water and a nylon brush to remove the brake residue then rinse with the hose, then apply a very slight dribble of WD40 to displace the moisture. Using this procedure I seem to have avoided the brake issues a lot of people seem to have. I also have the Lyndall pads. | ||
| Jmhinkle |
Dr_Greg, I had developed pretty bad pulsation that was acting just as you describe on the stock pads a few hundred miles ago around 4200 miles. I noticed the black streaks developing from the holes on the rotors so I switched to the Lyndalls when I changed tires at 4500 miles a few weeks ago. Before installing the new pads, I took emery cloth and removed all the black residue and streaking on the rotors first. Then I broke them in as packaging said. I have no pulsing anymore and definitely have far stronger brakes with better feel than stock. I know you put 20k+ on the stock pads before changing them, did you remove any of the residue prior to doing the Lyndall's? I wonder if you had build up all ready and it's causing more build up on top of it. You might try giving them a good buff with some emery cloth. I'm jealous that you put more miles on your bike in 3 months than I have since I bought mine. I definitely don't get to ride enough. Have you seen another Orange Uly in the city? My (ex)wife snapped a picture on her phone of one parked at an office building. I thought I had the only Orange one in the area. Guess I'm not alone anymore. | ||
| Dr_greg |
Thanks, guys. In researching this problem I found an interesting article in which "warped rotor" is almost never the reason. When I do my 30,000-mile maintenance in a couple weeks I'll remove the rotor and pads and check things out. Hey Joel, don't sweat the miles...it's quality not quantity! Also, I've not seen an Orange Uly around here, but there oughta be a bunch of 'em, since it's the best bike in the world! | ||
| Ft_bstrd |
One thing to look at is the pads themselves. The Lyndalls are softer than stock and don't last as long. Mine have about 4,000 miles and are starting to wear pretty quickly. | ||
| L_je |
Ft_B, I wish I could say that I had pieces of your brake pads stuck in between my teeth, but I couldn't stay close enough for that. -j PS- I'm going down to the garage and work on my brakes/rotors right now. I know my front pads are pooched, and I'm thoroughly convinced I didn't install my back brake pads correctly... | ||
| Jlnance |
Gregg - I had my rotor replaced to get rid of the pulsing, but it came back after a couple thousand miles. I had Lyndals on there when the rotor was swapped. They weren't new lyndals, so I'm thinking I may have glazed them trying to break them back into the new rotor. But in any event, you can get pulsing with lyndals. They did seem to make the original pulsing better when I put them on, but it never went completely away. | ||
| Chadhargis |
I've got about 4000 miles on the Lyndalls pads, and I'd say they are 3/4ths of the way used up. They are very soft pads. The positive is they shouldn't be chewing up the rotor like some pads do. I've noticed a light pulsing in my brakes lately. Nothing like the stock pads had. Just not a smooth action like the Lyndalls had when new. I'm also not getting the "Zzzzzzzzzzzzzzzzzzzz" sound from them when I stop, so they may be shot and need replacing. I'm going to order a new set and see if that corrects the problems. Now, keep in mind that my pads have seen two track days which is murder on tires and brakes. My track day tires have 300 miles on them and the rear is pretty much toast. Front might have another day or two in it. | ||
| Electraglider_1997 |
I have stock pads, front and back and just over 5000 miles. I remember reporting some time back that my rear brake wouldn't lock up no matter what. It does now for whatever reason. I have absolutely no complaints with the ULY stock brake pads and no pulsing out of either front or rear at the 5000 mile mark. | ||
| Dr_greg |
After reading the StopTech article on "myth of the warped rotor" it sounded like "breaking them in" again might do the trick. So on the way home last night I did about 5 stops from 40 mph almost to zero (you're not supposed to stop). The pulsation is noticeably reduced. Tonight I'll do a "full" break-in and I bet the pulsation will be gone! |
