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Question: Cassette Sizing
I have a question on cassette sizing.
I bought a Bianchi for 40 bucks that a guy used to use for crit racing. (The bike iD stamped on the head tube is 0125633 -- I don't know what this means, or how this would help me date the bike). The back cassette has only big gears (no pixie gears for heavy climbing). I want to switch the cassetes, but I'm a novice about sizing. I measured the largest sprocket on the cassette and it is 90 mm. The largest sprockets on my touring bike are quite a bit larger, and I think that's what I need. My question: the 90 mm cassette doesn't correspond to the sizes I see advertised. I see a cassette of 11-28, 12-21, for example, but I don't see how these relate to 90mm. Thanks for any help. Michael |
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Question: Cassette Sizing
"Michael" wrote in news:F_fXa.59639$o27.1329609
@twister.rdc-kc.rr.com: My question: the 90 mm cassette doesn't correspond to the sizes I see advertised. I see a cassette of 11-28, 12-21, for example, but I don't see how these relate to 90mm. A 12-21 cassette has a small cog with 12 teeth and a large cog with 21 teeth. The number of teeth should be stamped somewhere on each cog, or you can just count them. |
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Question: Cassette Sizing
The 11-28 and 12-21 numbers you see refer to the amount of teeth on the
largest and smallest gears. The gears in between will have a difference of one or two teeth. The numbers are usually stamped on the gear but are difficult to see. BTW, if you switch cassettes you will want to replace the chain at the same time to avoid problems. Glenn "Michael" wrote in message ... I have a question on cassette sizing. I bought a Bianchi for 40 bucks that a guy used to use for crit racing. (The bike iD stamped on the head tube is 0125633 -- I don't know what this means, or how this would help me date the bike). The back cassette has only big gears (no pixie gears for heavy climbing). I want to switch the cassetes, but I'm a novice about sizing. I measured the largest sprocket on the cassette and it is 90 mm. The largest sprockets on my touring bike are quite a bit larger, and I think that's what I need. My question: the 90 mm cassette doesn't correspond to the sizes I see advertised. I see a cassette of 11-28, 12-21, for example, but I don't see how these relate to 90mm. Thanks for any help. Michael |
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Question: Cassette Sizing
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Question: Cassette Sizing
In article ,
Hunrobe wrote: "Michael" wrote in part: The back cassette has only big gears (no pixie gears for heavy climbing). Others have explained how to count teeth but I have a question- am I the only rider that's never heard of a "pixie gear"? That's a real question. It's a phrase I've never run across and I'm just curious. If he said "fairy gears" perhaps that would be more obvious. --Paul |
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Question: Cassette Sizing
(Paul Southworth)
wrote: If he said "fairy gears" perhaps that would be more obvious. --Paul I understood the connotation. I'd just never heard that particular phrase. Regards, Bob Hunt |
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Question: Cassette Sizing
On 06 Aug 2003 01:33:39 GMT, Hunrobe wrote:
Others have explained how to count teeth but I have a question-am I the only rider that's never heard of a "pixie gear"? That's a real question. It's a phrase I've never run across and I'm just curious. Same here. I assumed it means a really low gear. Regards, Bob Hunt -- Rick Onanian |
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