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Old 11-04-09, 09:18 PM   #1
lohump
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Carbon Brake Pads on Aluminum Rims

What are the consequences of using Shimano Dura Ace brake pads designed for carbon rims on aluminum rims? Got a great bike on Ebay that was shipped like that....
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Old 11-04-09, 09:23 PM   #2
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The braking sucks
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Old 11-04-09, 09:48 PM   #3
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better than ceramic on al though
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Old 11-05-09, 09:13 AM   #4
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Braking will be very bad and the pads will be damaging to the rims. Get the correct pads. Either Shimano's correct composition pads or Kool Stop "Dura" pads will fit your pad holders.
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Old 11-05-09, 12:11 PM   #5
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Yup ^^^. Get the right pads for the job. Your wheels will thank you.
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Old 11-05-09, 03:20 PM   #6
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Braking will be very bad and the pads will be damaging to the rims. Get the correct pads. Either Shimano's correct composition pads or Kool Stop "Dura" pads will fit your pad holders.
Why would brake pads for carbon rims be bad/damaging for aluminum rims? Most are cork formulations/compounds. Might be confusing them up with ceramic brake pads.

As far as braking performance, cork pads are generally not recommended for aluminum rims (the exception is Swisstop yellow pads, which according to Swisstop, can be used for both w/o any difference in braking performance and there are plenty of triathletes that use their yellow pads for double duty for their carbon race and aluminum training wheels/rims).
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Old 11-05-09, 08:18 PM   #7
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Why would brake pads for carbon rims be bad/damaging for aluminum rims? Most are cork formulations/compounds. Might be confusing them up with ceramic brake pads.
Right, I was.

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As far as braking performance, cork pads are generally not recommended for aluminum rims (the exception is Swisstop yellow pads, which according to Swisstop, can be used for both w/o any difference in braking performance and there are plenty of triathletes that use their yellow pads for double duty for their carbon race and aluminum training wheels/rims).
As you note, most cork (carbon specific) pads aren't recommended for Al rims, probably due to substandard braking.

The Swisstop Yellow pads are so expensive that replacing whatever is installed on the OP's brakes with either Shimano or Kool Stop pads will be much less expensive. Unless the Swisstops are what's there now but that's unlikely.
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Old 11-05-09, 09:35 PM   #8
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Swisstop is idiotically expensive.
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Old 11-06-09, 07:43 PM   #9
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I doubt that carbon-specific pads would hurt aluminum rims; the damage is more likely to be to the pads, or perhaps to the rider because of substandard braking
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Old 06-11-15, 08:33 AM   #10
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The pads will damage. And eventually crumble. Happened here.

t
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Old 06-11-15, 08:43 AM   #11
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Let's see. Swap out the cheaper AL training wheels but use pads for CF. Have substandard braking. Maybe even pick up some AL grit off the wheels.

Put fancy, expensive CF wheels back on. The pads are now badly worn and may even have some AL grit in them to grind up against the CF wheels.
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Old 06-11-15, 08:49 AM   #12
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pad inserts are cheap, change them.
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Old 06-11-15, 08:55 AM   #13
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The pads will damage. And eventually crumble. Happened here.

t

What pads? How long? What conditions?

Thanks.
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Old 06-11-15, 10:45 AM   #14
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If the carbon pads have already been used on carbon wheels. They will leave black residue on the aluminium rims. Braking performance will also feel crap. You have to scrub and clean the rims thoroughly otherwise when switching back you will contaminate the aluminium pads. Believe me how do i know this ? because i got lazy and tried it and i wont be doing it again.
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Old 06-11-15, 10:47 AM   #15
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New pads might work but there are better rubber compounds for aluminium.

Last edited by trailflow1; 06-11-15 at 11:13 AM.
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Old 06-11-15, 11:13 AM   #16
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Quote:
What pads? How long? What conditions?
For Me where I live I Use Kool Stop Pads on my aluminum rim Bikes , Salmon red compound, because it Rains Here .

As to How long , the Dura Ace style pad holders each have a set screw,

so it only takes maybe 2 minutes per pad to remove that screw slip in a New Pad ..

Perhaps a bit longer if i Drop the little screw and have to find it on the floor.
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Old 06-11-15, 07:55 PM   #17
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For Me where I live I Use Kool Stop Pads on my aluminum rim Bikes , Salmon red compound, because it Rains Here .

As to How long , the Dura Ace style pad holders each have a set screw,

so it only takes maybe 2 minutes per pad to remove that screw slip in a New Pad ..

Perhaps a bit longer if i Drop the little screw and have to find it on the floor.

Actually wanted to know what pads tydstaples was using that crumbled
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