Diamond pattern on rim on Rigida Superchromix
05-30-17, 10:20 AM
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Diamond pattern on rim on Rigida Superchromix
Have a pair of Rigida Superchromix wheels that I recently took off an old Kalkhoff bike. Was wondering if there is a specific term for the diamond pattern on the rim?
Thank you.
Thank you.
05-30-17, 10:49 AM
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Hello,
I don't know the proper term, and know you did not ask but....Those hatch marks were put there to provide extra stopping in wet weather.
A little outdated and not very good stopping power in the rain or damp conditions....if only riding on warm dry days
O.K. but anything else be careful. Chrome and water, not your friends for stopping.
Regards, Ben
I don't know the proper term, and know you did not ask but....Those hatch marks were put there to provide extra stopping in wet weather.
A little outdated and not very good stopping power in the rain or damp conditions....if only riding on warm dry days
O.K. but anything else be careful. Chrome and water, not your friends for stopping.
Regards, Ben
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Last edited by xiaoman1; 05-30-17 at 10:54 AM.
05-30-17, 11:07 AM
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Dimpled? Cross-hatched? Not very smooth? Kinda bumpy?
Not very helpful?
Not very helpful?
05-30-17, 11:17 AM
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I call them "textured." Who knows if it's right.
05-30-17, 11:18 AM
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At least they make a create a cool "whhhrrrzzzz" sound when you stop?
05-30-17, 11:28 AM
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05-30-17, 11:56 AM
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05-30-17, 12:11 PM
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05-30-17, 12:14 PM
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they are called "ineffective"
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05-30-17, 12:15 PM
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-----
The general term I have always heard is "serrated."
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The general term I have always heard is "serrated."
-----
05-30-17, 12:39 PM
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Stippled?
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05-30-17, 12:43 PM
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@clubman wins - Dimpled
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05-30-17, 04:23 PM
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05-30-17, 05:09 PM
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I call it "knurled."
I have a set of alloy Super Champion Model 58s that have a knurled braking surface.
I have a set of alloy Super Champion Model 58s that have a knurled braking surface.
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05-30-17, 05:37 PM
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Knurled, yes. Mavics too
05-30-17, 09:59 PM
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I would call them "terrifying", especially in the wet. While "designed" to improve braking in wet weather, the dimples (or whatever) effectively held water, paying it out and increasing stopping distances over plain-sided chromed rims. Neither were any fun!
Cheers!
Cheers!
05-31-17, 09:22 AM
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And remember the Weinmann brake pads with the X pattern, ostensible also to let water out? I don't think they helped, either.
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05-31-17, 11:29 AM
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From an automotive application, knurling is a process the deforms the material to raise the effective surface. It is often used on used pistons skirts to reduce piston slap when rebuilding an engine.
The surface of the braking surface is not raised as a knurling process results.
The dimpling may be a result of an embossing process but "dimpled surface" is an engineering term for the resulting surface.
The surface of the braking surface is not raised as a knurling process results.
The dimpling may be a result of an embossing process but "dimpled surface" is an engineering term for the resulting surface.
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