Choosing a Cassette
08-15-12, 02:04 PM
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Choosing a Cassette
Trying to decide between an 11-36 and the 12-36.
Here's the graph. The 11-36 is on top:
https://www.gear-calculator.com/#KB=2...5&UF=2205&SL=2
My thinking is that the 11 offers a more even spread between gears. It also preserves my high end. Anyone have input on why the 12 might be better for touring?
Here's the graph. The 11-36 is on top:
https://www.gear-calculator.com/#KB=2...5&UF=2205&SL=2
My thinking is that the 11 offers a more even spread between gears. It also preserves my high end. Anyone have input on why the 12 might be better for touring?
08-15-12, 02:07 PM
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Do you think you'll need over 100 gear inches or is mid-90's enough?
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08-15-12, 03:47 PM
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For us mere mortals, wearing out a 12 or 11 tooth gear on a cassette isn't usually an issue. I've worn out plenty of 18 through 24 but anything below an 16 isn't used often enough to wear out.
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08-15-12, 04:03 PM
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That is a really cool gear calculator, haven't seen that one before.
I would use the 11, myself, with those rings.
I would use the 11, myself, with those rings.
08-15-12, 04:13 PM
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Meh, I'm sure most of us would wear out an 11 tooth cog, even if only due to lack of use causing it to rust.
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08-15-12, 04:20 PM
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95" [a 50/14t at the time ] was just fine.. for years on the road..
Shimano's 7 speed K , 13-34 cassette, was a good touring set . (29t #6)
adding 'speeds' is marketing driven.. and allows price escalation to occur.
Shimano's 7 speed K , 13-34 cassette, was a good touring set . (29t #6)
adding 'speeds' is marketing driven.. and allows price escalation to occur.
Last edited by fietsbob; 08-15-12 at 04:26 PM.
08-15-12, 05:11 PM
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You can see how I make these decisions by viewing this post:
https://www.bikeforums.net/showthread.php/838204-Getting-used-to-bigger-gears?p=14609216&viewfull=1#post14609216
https://www.bikeforums.net/showthread.php/838204-Getting-used-to-bigger-gears?p=14609216&viewfull=1#post14609216
08-15-12, 08:06 PM
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That's false. Newer technology allows more choices and lowers the price of the prior technology. Factoring the time value of money, in real dollars, the price of 7 speed has become lower than it was when it first appeared.
08-16-12, 08:07 AM
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It boils down to personal preference. I have a 12-36 but it is a 9 speed on my triple and my center ring is a 42. If all I was doing was loaded touring and depending on your abilities the 94 gear inch was enough high gear then go with the 12 if that spacing has the close gears in your sweet spot. For me I find my sweet spot is more in the center of the cassette and on the center 42t ring. For me the 28t would be a little big and I have a 24 on for a granny and haven’t seen any shifting problems that 18 GI is really nice as a bailout gear.
Everyone is different though I would take the 11, 13, 15 over the 12, 13, 14 as far as spacing goes. My 12-36 starts off 12, 14, 16. I don’t have a 10sp so I haven’t looked into what is out there as to spacing’s.
In my case I have the 52 big ring and that totally took away my desire for a 11t.
Everyone is different though I would take the 11, 13, 15 over the 12, 13, 14 as far as spacing goes. My 12-36 starts off 12, 14, 16. I don’t have a 10sp so I haven’t looked into what is out there as to spacing’s.
In my case I have the 52 big ring and that totally took away my desire for a 11t.
08-16-12, 08:36 AM
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Nice calculator, but would be better if it gave the option to show steps between gears for each chainring separately, since shifting is usually front or rear only, but not both. Also, would be great to be able to compare different tire/wheel sizes with the same gearing.
08-16-12, 09:11 AM
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https://home.earthlink.net/~mike.sherman/shift.html
Last edited by bud16415; 08-16-12 at 09:14 AM.
08-16-12, 09:19 AM
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+1
I find that pedaling while holding 25mph to 30+mph on a -2% to -5% grade is a daily event.
I find that pedaling while holding 25mph to 30+mph on a -2% to -5% grade is a daily event.
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Last edited by Barrettscv; 08-16-12 at 02:43 PM.
08-16-12, 12:31 PM
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For myself, I formerly used an 8 spd setup with 20-32-42 rings and 12-32 cluster. Recently I have been converting my bikes to 9 spd with a 12-36 cluster. The 9 spd only gives up the 13 on the 10 spd 12-36 cluster and I don’t feel that is significant. It gives me a stump puller low, which can become useful at the end of a long, hot day. The top gear is around 95” which at my age is fine. If I am spinning out in that gear, I will just stop pedaling and coast. One thing the 9 spd setup allows me is to use the more common 22-32-42 setup up front and still retain a good low gear.
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