Road Cycling “It is by riding a bicycle that you learn the contours of a country best, since you have to sweat up the hills and coast down them. Thus you remember them as they actually are, while in a motor car only a high hill impresses you, and you have no such accurate remembrance of country you have driven through as you gain by riding a bicycle.” -- Ernest Hemingway

Triple to double...

Old 07-10-06, 03:29 PM
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Jstyle
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Triple to double...

I have a triple on my bike now I was wondering if I can just take off the other ring and make it a double? Since I have had the bike I havent used the smallest gear in front yet. What will it affect what will I have to do afterwards?
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Old 07-10-06, 03:56 PM
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It will work just fine. I'm not sure how it will benefit you but it will work fine. Be sure to tighten up the appropriate limit screw after you remove the chain ring.
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Old 07-10-06, 04:10 PM
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fmw provides good advice, I too can't think of a benefit. Do check to see if you can accidently trap the chain between spider arms and BB, if it does fall off the small end, with no small ring to catch it. Else you will have to carry a crank puller/chain tool(if you don't already) on your rides.
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Old 07-10-06, 04:15 PM
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Sure you can, but it is a waste of time for anything except making sure people don't think you need a triple (a poor reason, BTW). That third ring weights very little. If you do it, be very careful to adjust the limit screw or you will be throwing the chain dangerously easily.
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Old 07-10-06, 04:47 PM
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Hehe, now you can be macho.
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Old 07-10-06, 04:53 PM
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It wouldn't do much good. Doubles have different shifters, front and rear derailleurs. The cranks will also look funny with a missing chainring but with all the holes that imply there should be one there.
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Old 07-10-06, 05:02 PM
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Originally Posted by jtown
It wouldn't do much good. Doubles have different shifters, front and rear derailleurs. The cranks will also look funny with a missing chainring but with all the holes that imply there should be one there.
You can use triple derailleurs and the shifters just fine with a double set up. I don't know about the new 10 speed brifters, but there was no double and triple specific 105 9 speed brifters. It is going the other way (double---> triple) that is a no go. Not enough clicks in the shifter or travel in the FD.

The long cage derailleur in the rear, however, would be a dead give away to the folks that would make fun of you that you used to have a triple. I agree the crank would look funny missing the 30t ring.
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Old 07-10-06, 05:06 PM
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Originally Posted by barba
You can use triple derailleurs and the shifters just fine with a double set up. I don't know about the new 10 speed brifters, but there was no double and triple specific 105 9 speed brifters. It is going the other way (double---> triple) that is a no go. Not enough clicks in the shifter or travel in the FD.

The long cage derailleur in the rear, however, would be a dead give away to the folks that would make fun of you that you used to have a triple. I agree the crank would look funny missing the 30t ring.
There are now double and triple specific shifters. I don't know if there is anything inherent in the triple shifter that would prevent you from using it with a double.
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Old 07-10-06, 05:07 PM
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Originally Posted by voltman
There are now double and triple specific shifters. I don't know if there is anything inherent in the triple shifter that would prevent you from using it with a double.
There shouldn't be. You should be able to limit out the third click just through the low gear screw on the front derailleur.
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Old 07-10-06, 05:09 PM
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Originally Posted by the beef
There shouldn't be. You should be able to limit out the third click just through the low gear screw on the front derailleur.
That would be my take.
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Old 07-10-06, 05:11 PM
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I just checked. It looks like the only different in the new STI shifters is that the triple-specific shifter has a name plate with "Triple" written on it.
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Old 07-10-06, 05:14 PM
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And a bracket?

http://bike.shimano.com/media/cyclin...9830538055.pdf
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Old 07-11-06, 05:44 AM
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Well thanks for all of the insight that really helps me out...
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Old 07-11-06, 10:49 AM
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So are you gonna do it?
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Old 07-11-06, 10:58 AM
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I would say leave it in, it doesn't weigh alot.

Unless you are seaching for those elusive OCP points.
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Old 07-11-06, 11:02 AM
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Originally Posted by the beef
Hehe, now you can be macho.
That would require losing 2 rings and replacing the big with a 55T.
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Old 07-11-06, 11:34 AM
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Originally Posted by shakeNbake
I would say leave it in, it doesn't weigh alot.

Unless you are seaching for those elusive OCP points.
He'll actually lose points trying to make a triple into a double. No? Unless I misunderstand what OCP is.
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Old 07-11-06, 11:38 AM
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No he'd gain OCP points in description. I'm not sure you'd get the most points if the bike looked a little weird afterwards with "Triple" on the product label or obvious missing parts.
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