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Old 07-29-05, 06:10 PM   #1
Paiyili
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Aluminum gears vs. Steel?

Hi,
I have a question about a component. I had the cassette replaced on my hybrid bike today at a LBS. Old one was a HG30, put on a HG50. Old gears were steel, new ones are aluminium. The young fellow at the LBS launched into a spiel about how the new gears would outlast the old ones because steel is softer than aluminium. Huh? Is there something that he was actually trying to say that just did not come out right?
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Old 07-29-05, 06:12 PM   #2
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an aluminum cassette? Those are pretty expensive and typically used for race I believe. He may have been talking about aluminum chainrings, which are pretty much standard now.
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Old 07-29-05, 06:17 PM   #3
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Originally Posted by Paiyili
Hi, I had the cassette replaced on my hybrid bike today at a LBS. Old one was a HG30, put on a HG50. Old gears were steel, new ones are aluminium. The young fellow at the LBS launched into a spiel about how the new gears would outlast the old ones because steel is softer than aluminium. Huh?
An HG 50 cassette has steel cogs. This young fellow despite his tender age has smoked way too much carpet.
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Old 07-29-05, 07:09 PM   #4
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An HG 50 cassette has steel cogs. This young fellow despite his tender age has smoked way too much carpet.
Ah. I have been searching for the hg50 in alumnium, to read up on it, and it seemed that was the case (the steel, not the carpet). Couldn't find one. Thanks. What the hell was he talking about? Are aluminum cogs considered superior?
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Old 07-29-05, 07:15 PM   #5
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hes probably talking about aluminum chainrings
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Old 07-29-05, 07:28 PM   #6
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hes probably talking about aluminum chainrings
Whatever, but steel still isn't softer than alumnum. But who knows what might be if one smokes enough carpet.
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Old 07-29-05, 07:43 PM   #7
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Whatever, but steel still isn't softer than alumnum. But who knows what might be if one smokes enough carpet.
Yea that part lost me too.
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Old 07-29-05, 07:54 PM   #8
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Yea that part lost me too.
Oh, well. The parts were installed correctly, the bike runs beautifully, wheels were trued a bit, cables were adjusted/replaced, so I'm happy. I just wanted to know if I was being an idiot for standing there arguing the propereties of steel and aluminium with this kid. Turns out it wasn't an issue anyway. Thanks for the information.
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Old 07-29-05, 09:14 PM   #9
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I just wanted to know if I was being an idiot for standing there arguing the propereties of steel and aluminium with this kid. Turns out it wasn't an issue anyway. Thanks for the information.
Good catch.Never waste your time trying to argue with a carpet smoking muppet.
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Old 07-29-05, 11:22 PM   #10
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Maybe he was referring to something like this on the XT casette:
http://www.shimano.com.au/publish/co...onents/xt.html
How it has the aluminum "spider" on the last 5 cogs are so.....
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Old 07-30-05, 06:22 AM   #11
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Maybe he was referring to something like this on the XT casette:
http://www.shimano.com.au/publish/co...onents/xt.html
How it has the aluminum "spider" on the last 5 cogs are so.....
The spiders have nothing to do with wear or what the cogs themselves are made of.
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