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12-27 vs 12-25
I currently have an 11-23 on my Ultegra double and need more range. Should
I go for the 12-27, or are there shifting issues, etc., that would steer me toward the 12-25. I can ride the 23, but have developed some "over-use" type injuries from riding the hills around here. Thanks. |
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#2
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12-27 vs 12-25
dorn wrote:
: 12-27 shifts perfect and it gives you a bailout gear, plus unless you are : pretty strong its not that often you need more than a 12. In fact, why not go 13/25 which would go you a nice close range? If you've got a 52 or 53 big ring you don't need the 12 anyway. Annoying Shimano don't offer a 13/27 which would probably be perfect for your needs. Arthur |
#3
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12-27 vs 12-25
Arthur Clune wrote: dorn wrote: : 12-27 shifts perfect and it gives you a bailout gear, plus unless you are : pretty strong its not that often you need more than a 12. In fact, why not go 13/25 which would go you a nice close range? If you've got a 52 or 53 big ring you don't need the 12 anyway. How would you know and what does "need" mean anyway? Annoying Shimano don't offer a 13/27 which would probably be perfect for your needs. That's the one thing I hate about the aligned cog/cassette system -- not as much freedom to mess around if you are a gear head. We simply get what "someone else" decided was a good idea. Fortunately some tricks can be played if one is clever and has a few extra bucks. |
#4
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12-27 vs 12-25
On Thu, 24 Jul 2003 13:16:31 GMT, "Donald Specker"
wrote: I currently have an 11-23 on my Ultegra double and need more range. Should I go for the 12-27, or are there shifting issues, etc., that would steer me toward the 12-25. I can ride the 23, but have developed some "over-use" type injuries from riding the hills around here. Thanks. In the world of recreational bicyclists, there is little difference in Shimano's 12/25 and 12/27. 21,23,25 vs 21,24,27 I'd opt for the 27. A 13/25 is made in Ultegra and 13/26 in 105 and those really my favorites in Shimano. Should you want to save $, just take the 11 off your 11/23 and add a spacer and 26. |
#5
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12-27 vs 12-25
I currently have an 11-23 on my Ultegra double and need more range. Should
I go for the 12-27, or are there shifting issues, etc., that would steer me toward the 12-25. I can ride the 23, but have developed some "over-use" type injuries from riding the hills around here. Should you want to save $, just take the 11 off your 11/23 and add a spacer and 26 For this to work, you'll also need a diferent (larger diameter) lockring and 12 or 13T first position cog, which is knurled to mate with the lockring. |
#6
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12-27 vs 12-25
[posted to rec.bicycles.tech and mailed to Paul Kopit
] Should you want to save $, just take the 11 off your 11/23 and add a spacer and 26. The smallest cog is special. You'd need to get a replacement for it. |
#7
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12-27 vs 12-25
"Doug" wrote:
The smallest cog is special. You'd need to get a replacement for it. The 12 of the 11-23 I have in front of me is identical to the 12 of the 12-25. I believe all 12t Shimano sprockets will work in the first position. You do need to use the correct lockring though. James Thomson |
#8
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12-27 vs 12-25
"Donald Specker" wrote ...
I currently have an 11-23 on my Ultegra double and need more range. Should I go for the 12-27, or are there shifting issues, etc., that would steer me toward the 12-25. I can ride the 23, but have developed some "over-use" type injuries from riding the hills around here. I went to 12-27 Ultegra a few years ago for the extra gear (actually I went from 8 speed Ultegra 12-23 or 24 to 9 speed Dura Ace 12-27). I have no shifting issues at all. I can crank the 12 to 35 mph downhill; I can't imagine needing an 11. Michael |
#9
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12-27 vs 12-25
Donald:
I use my 12-/25 set but add the 11/12/13 cogs from my 11-23 set for a final combo of 11/12/13/15/17/19/21/23/25. The shifting between the 13 & the 15 is not perfect but it gives me both a nice high end for the long downhills and that extra low gear for the big uphills. IMO if you live in an area that has hills big enough for a 25 or 27, then you will probably get enough benefit from the 11 to make it worth having. MOO, Matt Donald Specker wrote: I currently have an 11-23 on my Ultegra double and need more range. Should I go for the 12-27, or are there shifting issues, etc., that would steer me toward the 12-25. I can ride the 23, but have developed some "over-use" type injuries from riding the hills around here. Thanks. |
#10
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12-27 vs 12-25
Michael wrote:
I went to 12-27 Ultegra a few years ago for the extra gear (actually I went from 8 speed Ultegra 12-23 or 24 to 9 speed Dura Ace 12-27). I have no shifting issues at all. I can crank the 12 to 35 mph downhill; I can't imagine needing an 11. How about if your largest front cog is a 46? --Bill Davidson -- Please remove ".nospam" from my address for email replies. I'm a 17 year veteran of usenet -- you'd think I'd be over it by now |
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