noob(ish) cassette question
07-07-07, 11:26 AM
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noob(ish) cassette question
I'm looking at a couple of new cassettes for my bike and there are 2 9-speed Shimanos whose only difference (aside from price) is one is described 12t and the other is 11t... what is this difference? Type of metal? # of teeth? Ratio of gears? Thank you.
07-07-07, 11:37 AM
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11t vs 12t simply means that the smallest of the sprockets on the cassette has 11 teeth or 12 teeth. However, the rest of the cassette can look rather different, even between two that both start at 11t.
One could be 11-12-13-14-15-17-19-21-23, while another could be 11-12-13-15-17-20-23-26-30-34.
One could be 11-12-13-14-15-17-19-21-23, while another could be 11-12-13-15-17-20-23-26-30-34.
07-07-07, 11:58 AM
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Typically cassettes are described by the number of teeth on both the biggest cog and the smallest cog.
If you're doing a lot of climbing you might want a 12-25 cassette. (12 teeth small cog. 25 teeth big cog.)
If you're doing a lot of high-speed riding or sprinting on relatively flat roads you might want a 11-21 cassette.
Bob
If you're doing a lot of climbing you might want a 12-25 cassette. (12 teeth small cog. 25 teeth big cog.)
If you're doing a lot of high-speed riding or sprinting on relatively flat roads you might want a 11-21 cassette.
Bob
07-07-07, 12:00 PM
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Thank you both...this exactly answers myquestion; much appreciated!
07-07-07, 03:04 PM
#5
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I think that if you currently have a 12 or larger, going to an 11 may require you to also get a "Compact" FreeHub body or add a spacer. See-
https://sheldonbrown.com/harris/k7.html#10
Page down to 11 Tooth Cogs. It's just under the chart of 10 speed cassettes.
https://sheldonbrown.com/harris/k7.html#10
Page down to 11 Tooth Cogs. It's just under the chart of 10 speed cassettes.
