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Old 05-22-11, 10:05 AM   #1
yos9
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Cassette Change - 105 5600 12-27 to Ultegra 6700 11-28t?

Is it possible to switch from a Shimano 105 5600 12-27 cassette to an Ultegra 6700 11-28t? I got a new set of wheel and I put my 105 5600 cassette on them and all was fine, but I decided that if I needed to switch out my wheels, I wanted to have a second cassette for the spare. I was planning on putting my 105 5600 12-27 on the previous stock wheels and buy a new cassette for the new wheels. I saw a really good deal on the Ultegra 6700 11-28t cassette and I thought that a slight upgrade on the cassette might be nice, and the bonus of the 28T cog would by great for the hills I have started to work on recently. Any reason why this shouldn't work as a swap? If swapped, what kind of adjustments / additional equipment should I be looking at? I would assume some RD adjustments, but I am really new to bike maintenance (but trying to learn!) especially derailleur adjustments.
Any help or advice is appreciated!
-y
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Old 05-22-11, 10:11 AM   #2
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No problems or adjustments should be expected.
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Old 05-22-11, 10:29 AM   #3
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Awesome - Well during my install today, I have clicking issues. I will have to spend more time on it when I have a chance tomorrow. Thanks...
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Old 05-22-11, 11:56 AM   #4
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A quick adjustment might be needed, but the change can be made without any adjustment most of the time.
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Old 05-23-11, 12:19 AM   #5
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Does it only click in first gear? The upper jockey wheel may be rubbing on the 28t - there's a screw next to the derailleur's mounting bolt that controls the spring tension in that pivot and thus the distance of the upper jockey wheel from the cogs.
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Old 05-23-11, 05:25 PM   #6
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I have been considering the 6700 11-28 for a rear cassette on my tri-bike. It has a 6600 rear D/R. However, several reports I have read is that it will not work well unless you have a 6700 or higher rear D/r.

http://forums.roadbikereview.com/sho...d.php?t=185130
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Old 05-23-11, 07:40 PM   #7
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+1

Did that on my bike. No adjustment needed. Then again, I have the long cage RD, so it was no problem for me.
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Old 05-23-11, 09:26 PM   #8
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I have an Ultegra 6603 setup with a 6703 crank. I replace the 12-27 with a 11-28 and no adjustments were needed. The 6603 long cage derailleur works just as well as it did with the 12-27. I like the 11-28 and don't miss the 16 gear at all.

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Originally Posted by Monoborracho View Post
I have been considering the 6700 11-28 for a rear cassette on my tri-bike. It has a 6600 rear D/R. However, several reports I have read is that it will not work well unless you have a 6700 or higher rear D/r.

http://forums.roadbikereview.com/sho...d.php?t=185130
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Old 05-24-11, 07:56 PM   #9
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Took my bike to my lbs (where I have a service plan on my bike anyway) and they tuned me up. Went for a ride tonight and things seem so far so good. No change in chain, etc. pretty stoked.
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