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bic_bicknell

bic_bicknell

2016-11-06 18:06:00 UTC

Hey guys.
Picked up my new 2015 Superduke from the dealer a few days ago. Got 200 km's on her. Noticed the front brakes squeak pretty bad when almost stopped. Any ideas how to stop that??

AGRO!

AGRO!

2016-11-06 20:23:00 UTC

Spray some oil or WD40 type lubricant on 'em and the squeezing will stop.

Seriously though, well known issue. Just take the pads out, put some Copperslip or similar on the backs of the pads, reassemble and the problem will have gone away.

It's all to do with resonant frequencies.

lc4

lc4

2016-11-28 04:44:00 UTC

I've had this problem since day one on my 1290 SDR. It did it with the original discs and was still there with the wave discs that I put on. I had the dealer look at it & they said it was a minor warp in the disc. I said that's odd because it was present still even after discs were replaced. They thought maybe a small problem in the wheel where the discs mount but since it was minor & intermittent they said to just wait it out. Well, I waited and rode the bike and 1,000 miles later the noise was still there.

I took delivery of my bike January 2016 but it was made sometime in 2015 so I figure that the brake fluid is close to two years old and already pretty dark looking so I did a brake flush. Not only that but I also cleaned the exposed section of the caliper pistons and put some brake assembly lube on the outside of the pistons. Did a complete bleed with a Mighty Vac and voila' no more brake hum noise when just coming to a stop or when just leaving a stop. No longer any noise when pushing the bike around in the garage. I recommend doing this if you have this problem. Here's some pictures and comments.

Up on the stands and ready for work. You can see how dark looking the brake fluid is in the reservoir.



Use some brake cleaner but be careful where you spray. I used old newspaper to catch the excess. Spray down the outside of the exposed pistons behind the brake pads.



Then coat the outside of the exposed pistons with some brake assembly lube. Be careful not to get on the pad surfaces and I did this by taking the caliper off the forks. The idea is to get some nice lube on the pistons so when you push them back into the calipers some of that lube will help with the retraction and the piston extension later when you are all done.