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Hyd brake hose rattling inside downtube

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Hyd brake hose rattling inside downtube

Old 05-24-18, 10:50 AM
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Lazyass
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Hyd brake hose rattling inside downtube

Just picked up a carbon road bike with RS505 brakes. The hose is rattling inside the DT. I've read about 9mm x 6mm foam tubing over the hose and that seems like a good idea. But I also read that you can put multiple zip ties on the hose, with the free running ends sticking out at different positions and that will keep the hose off the frame. Does that really work? I'm not sure if the ends of the zip ties would make noise or not. That would be best for me since I already have them.
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Old 05-24-18, 11:33 AM
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spray it full of insulating foam?
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Old 05-24-18, 02:38 PM
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Stuff a rag down the tube with a string to pull it out?
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Old 05-24-18, 02:50 PM
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The zip ties work because the tails of the ties push the hydraulic line into the side of the tube, like a spring clip. Foam doesn't control the location of the line but makes it rattle quietly.

In either case you have to have access holes large enough to get either foam or ties into the tube. Shame on the manufacturer for not doing the right in the first place.
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Old 05-24-18, 04:00 PM
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I may be able to squeeze a small zip tie through the hole in the frame. The foam I probably could. I haven't pulled the cranks off yet but I may be able to get at it though the bottom bracket shell.
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Old 05-24-18, 04:51 PM
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Originally Posted by Lazyass View Post
I may be able to squeeze a small zip tie through the hole in the frame. The foam I probably could. I haven't pulled the cranks off yet but I may be able to get at it though the bottom bracket shell.
As a retrofit, splitting the foam and sliding in from one end would be the easiest course.
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