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New brake pads, possibly something wrong?
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New brake pads, possibly something wrong? - October 17, 2013, 07:24 PM

first time riding after I installed HH sintered pads. Doing the break-in as specified, 20 hard stops from 25-30mph. The bite/stop is... Decent. It's been a while since I've ridden, but the stock pads seemed better. They are making some noise up front, hard to describe, but it's audible. Kinda sounds like cicadas in the summer lol, but a constant noise (only while braking, no noise while coasting or accel). Is it normal at first? They aren't squealing. No noise from the back.



Does this look normal^^ there weren't so many obvious wear lines with the old pads.


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October 17, 2013, 07:39 PM

The do wear the rotors more quickly and make more noise than stock pads in my experience.
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October 17, 2013, 08:58 PM

I used to buy EBC HH pads, and then Alex at Ram Cycles turned me onto Vesras. I will never buy anything but Vesra again.


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October 17, 2013, 09:16 PM

You might have some glaze on the rotors. Light scuffing with ultra fine grit sandpaper should help.

The HH Sintered should have excellent initial bite when you brake. But each rider needs to try different brands. As on a racer specific board for that feel of the latest available brake pads.

And beware. Initial bite can really screw you over with cold tires.


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October 17, 2013, 09:44 PM

The noise is normal. Also, the more aggressive the pad, the more inclined it is to need heat to work well. My EPFA pads are weak and noticeably less powerful than stock when they're cold, but once they get hot they're incredible.

My guess is that they're just not completely bedded in yet, as opposed to glazing, which usually is caused by excessive heat. In my experience, glazed rotors also look a bit more "smeared" than yours do. When you put new pads on an old rotor, the old rotor has scoring in it that's matched to the old pads. Depending on how deep that scoring is, it can take some time for the new pads to bed all the way in. This may be why you're seeing some more pronounced scoring lines on your rotor as the pad and rotor are working out the high spots.

Last edited by big_sur; October 17, 2013 at 09:48 PM..
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October 17, 2013, 09:56 PM

Did you scuff the rotors prior to break in?
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October 17, 2013, 11:26 PM

Quote:
Originally Posted by big_sur View Post
The noise is normal. Also, the more aggressive the pad, the more inclined it is to need heat to work well. My EPFA pads are weak and noticeably less powerful than stock when they're cold, but once they get hot they're incredible.

My guess is that they're just not completely bedded in yet, as opposed to glazing, which usually is caused by excessive heat. In my experience, glazed rotors also look a bit more "smeared" than yours do. When you put new pads on an old rotor, the old rotor has scoring in it that's matched to the old pads. Depending on how deep that scoring is, it can take some time for the new pads to bed all the way in. This may be why you're seeing some more pronounced scoring lines on your rotor as the pad and rotor are working out the high spots.


I didn't scuff the rotors before the install. Is that something I should do every pad swap?

I think your description is exactly what's happening. They don't appear to be glazed over at all, and braking was only getting better the longer I rode. I rode for a long time and they got pretty hot.


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October 17, 2013, 11:41 PM

Im a Vesrah RJL fan myself..



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October 17, 2013, 11:42 PM

You should always remove any glaze front he rotor when you swap pads, more so if you're changing compounds.


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October 18, 2013, 02:05 AM

Quote:
Originally Posted by KANEDA View Post
Im a Vesrah RJL fan myself..
Me too. I sand the rotors with some fine grit every 3-4K miles as well.


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October 18, 2013, 02:33 PM

The Cicada sound is air being compressed, then escaping from the holes in the rotor. Pretty cool, eh?!


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October 18, 2013, 02:40 PM

i liken the noise to chalk being dragged across a slate, but yes, seems to be normal


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