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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 10-08-07, 08:25 PM   #1
LanceW
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Pros and Cons of ceramic coating?

I just pick up a set of ceramic coated Deep V's. I have heard the braking surface is suppose to be better but are there any other pros or con to ceramic coating.

Thanks
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Old 10-08-07, 08:28 PM   #2
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Ceramic? really?
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Old 10-08-07, 08:42 PM   #3
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Ceramic braking surfaces are my jam. I have no doubt that it works to stop your bike faster than a regular machined rim, I can feel the difference every time.

I know of no cons, other than the fact that ceramic rims cost more. I had no idea that ceramic Deep V's existed.
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Old 10-08-07, 08:44 PM   #4
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That is what I was told. The braking surface is a bit more roughed up than normal braking surfaces right? If so then yeah they are ceramic.
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Old 10-08-07, 08:52 PM   #5
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Quote:
Originally Posted by LanceW View Post
That is what I was told. The braking surface is a bit more roughed up than normal braking surfaces right? If so then yeah they are ceramic.
Hmm, I don't know what that. My ceramic rims are smoother than a baby's bottom. I don't know what the science is, but I don't think it's a rougher braking surface.

Edit - Upon further examination, I may be confusing my Mavic CD rims with ceramic rims, which are apparently different.
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Old 10-08-07, 09:05 PM   #6
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the first con i can think of is the number of toilet seat jokes you're going to get...
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Old 10-08-07, 09:29 PM   #7
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ceramic... sounds heavy

but i guess it isn't
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Old 10-08-07, 10:11 PM   #8
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As far as I know there aren't any ceramic-coated Deep V's. It takes special sputtering equipment plus high temperature oven to apply ceramic coating (at least a ceramic coating that will stick) and Velocity doesn't have this. You may have anodized Deep V's.

Ceramic coatings have largely fallen out of favor. I think the only rim still offering them is the Mavic Open Pro Ceramic. It wears brake pads faster and offers weaker braking overall, but on first touch it avoids a film of water that causes something similar to hydroplaning with the brake pads. It's not very thick but it still will insulate the rim a bit from heating so the rim stays marginally cooler -- OK I suppose in hot weather but in the rain it means water doesn't vaporize as quickly. The one big plus of a good ceramic coating is that it protects the braking surface from brake wear. However, the majority of ceramic coatings I've had have tended to flake off in patches over time. A good brake pad and a bare aluminum rim brakes better and more consistently than anything else. If the aluminum is anodized, it doesn't really affect braking significantly, but I wouldn't worry about ceramic braking surfaces.
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