12-27 is freaking AWESOME!!!!
07-25-06, 01:48 PM
#26
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Originally Posted by banerjek
That's because they're identical except the last 2 cogs
12/25: 12-13-14-15-16-17-19-21-23-25
12/27: 12-13-14-15-16-17-19-21-24-27
Unless you ride on the wrong ring or ride up very steep hills, you won't use the biggest two cogs. You won't feel the 1T difference between the 23 and 24 and most of the time you want to use the 27, the hill will be so steep you will barely notice.
12/25: 12-13-14-15-16-17-19-21-23-25
12/27: 12-13-14-15-16-17-19-21-24-27
Unless you ride on the wrong ring or ride up very steep hills, you won't use the biggest two cogs. You won't feel the 1T difference between the 23 and 24 and most of the time you want to use the 27, the hill will be so steep you will barely notice.
Exactly. By the time I bail to the 25 or 27, it's out of need, not just to "spin" up the hill, so that is why I don't notice. The 2T difference between the 25 and 27 on a steep hill, is like you said, un-noticeable. The pain is still there.
07-25-06, 03:17 PM
#27
Used to be a climber..
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Originally Posted by banerjek
That's because they're identical except the last 2 cogs
eve
12/25: 12-13-14-15-16-17-19-21-23-25
12/27: 12-13-14-15-16-17-19-21-24-27
Unless you ride on the wrong ring or ride up very steep hills, you won't use the biggest two cogs. You won't feel the 1T difference between the 23 and 24 and most of the time you want to use the 27, the hill will be so steep you will barely notice.
eve
12/25: 12-13-14-15-16-17-19-21-23-25
12/27: 12-13-14-15-16-17-19-21-24-27
Unless you ride on the wrong ring or ride up very steep hills, you won't use the biggest two cogs. You won't feel the 1T difference between the 23 and 24 and most of the time you want to use the 27, the hill will be so steep you will barely notice.
I spend a lot of time in the 50T chainring - even some climbs. I've noticed a big difference going from the 21T to the 24T cog instead of the 21T to the 23T cog, particularly while ascending. As far as the 27T cog, I barely ever use it.....but it's there if I need it.
07-25-06, 05:18 PM
#28
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Originally Posted by brianallan
whatever happened to standing up : o
But if you find yourself forced to stand for extended periods, you should get lower gears. Standing is less efficient aerobically, and your muscles will fatigue when using the same position for a long time.
For those who want to know what different gears will do for you, this handy calculator will help:
https://sheldonbrown.com/gears/
The most useful output for me is speed at a 60 cadence. That gives me a low end estimate of speed.
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