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11-28t Campy 10s rear cassette with short cage RD?

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11-28t Campy 10s rear cassette with short cage RD?

Old 07-13-12, 05:18 PM
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Campag4life
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11-28t Campy 10s rear cassette with short cage RD?

Does anybody have personal experience with this? I currently run a 12-25t Campy casette with short cage RD and 50/38 compact.
If I go to a 11-28 cassette, will I need to buy a mid length cage Campy rear derailleur?
thanks
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Old 07-13-12, 05:29 PM
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Some people manage to use a 13-29 that has on tooth less wrap as the 11-28, using a short cage RD, but not all bikes will work the same. Depending on the exact chainstay length, some frames can lose up to 3T of wrap compared with the best case. Park Tool has the chain length formula posted on their website. If the result is just short of an even inch number, you're good. Suggested lengths of just over an even number is not good. Most likely, you need another inch of chain to gain a small amount of wrap capacity. If you don't mind the chain hanging loose in some of the smaller cogs, then you may still get by with the short cage.

A medium cage would be a better choice.

Last edited by DaveSSS; 07-13-12 at 08:30 PM.
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Old 07-13-12, 05:36 PM
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I just installed a 13-29 cassette using a short cage Campagnolo RD. The manual states that it is compatible with all Campagnolo 10S cassettes.
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Old 07-13-12, 06:14 PM
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Originally Posted by DaveSSS
Some people manager to use a 12-29 that has the same wrap as the 11-28, using a short cage RD, but not all bikes will work the same. Depending on the exact chainstay length, some frames can lose up to 3T of wrap compared with the best case. Park Tool has the chain length formula posted on their website. If the result is just short of an even inch number, you're good. Suggested lengths of just over an even number is not good. Most likely, you need another inch of chain to gain a small amount of wrap capacity. If you don't mind the chain hanging loose in some of the smaller cogs, then you may still get by with the short cage.
Thanks Dave.
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Old 07-13-12, 06:15 PM
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Originally Posted by tagaproject6
I just installed a 13-29 cassette using a short cage Campagnolo RD. The manual states that it is compatible with all Campagnolo 10S cassettes.
appreciate it taga.
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Old 07-13-12, 10:19 PM
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I plan on someday going to Campy 11 speed but I would want a 50/34 with an 11-28 cassette. I can't find any aftermaket cassettes that fit the bill. An 11-28 would work better for me than a 12-29.

Does anyone make one?
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Old 07-14-12, 06:46 AM
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I'm running a short 2006 Centaur rear dérailleur and it is technically only good up to 26. If I recall, other models at the time went higher so it depends upon the model.
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Old 07-14-12, 01:49 PM
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Originally Posted by Carbon Unit
I plan on someday going to Campy 11 speed but I would want a 50/34 with an 11-28 cassette. I can't find any aftermaket cassettes that fit the bill. An 11-28 would work better for me than a 12-29.

Does anyone make one?
Hi

Unless you have some ridiculous hills to climb, I think that the compact crank and the 11-28 may be a little bit too geared (sorry) for very slow moving fast spinning creeping up the hill. With the 11-28, you could go with a standard crank 53/39. I use a compact and the 11/25 for some big hills and often don't even hit the 25 unless I need a bail out gear.
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Old 07-14-12, 03:04 PM
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Originally Posted by Fox Farm
Hi

Unless you have some ridiculous hills to climb, I think that the compact crank and the 11-28 may be a little bit too geared (sorry) for very slow moving fast spinning creeping up the hill. With the 11-28, you could go with a standard crank 53/39. I use a compact and the 11/25 for some big hills and often don't even hit the 25 unless I need a bail out gear.
In effect I do go more toward a standard crank...but with compact base circle...50/38...so close to std gearing on the small ring...and don't need bigger gear inches than 50-12 even...though hit high RPM sometimes descending.
The benefit of 50/38 in front is closeness of spacing. Redundant gear inches is a good thing...as with a triple for example. Otherwise one constantly shifts between big and small ring which is generally the case or complaint with 50/34 riders. The problem with redundant gearing is it exposes both extremes...short and long gear inches. I can live with my current gearing...I just sometimes get out of the saddle and climb standing on steeper climbs which is OK as well. Pretty flat where I live but was considering a wider spaced cassette for a bit shorter gearing in particular as I don't want the gap of a 50-34 in front.
Sounds as though best to go with a medium rear derailleur cage if opting for a 11-28 cassette which makes sense.
Cheers

Last edited by Campag4life; 07-14-12 at 03:08 PM.
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Old 07-14-12, 04:44 PM
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Originally Posted by Fox Farm
Hi

Unless you have some ridiculous hills to climb, I think that the compact crank and the 11-28 may be a little bit too geared (sorry) for very slow moving fast spinning creeping up the hill. With the 11-28, you could go with a standard crank 53/39. I use a compact and the 11/25 for some big hills and often don't even hit the 25 unless I need a bail out gear.
Well, we have some really nasty hills here. Climbing Big Bear is 8000 feet of climb. I have a 53/42/30 and a 13-26 cassette. 98% of the time the lowest gear I need is the 42-26 but there have been times where I need the 30-26 but could get by with a 30-23 which is just about the same as a 34-28. There are hills that I need to climb that are more than a 12% climb that will go on for probably two miles.
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Old 07-14-12, 07:19 PM
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Living in northern Utah, my compact with a 11/25 seemed to serve me well. I will say that depending on which bike I was riding, (15 carbon or the 17 pound Ti) I some times wished for just one more gear but not very often or for very long.
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Old 07-14-12, 08:14 PM
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Boy, do I feel wimpy. My Jamis Aurora has a 52/42/30 ultegra triple crankset and I have a 12-34 mountain cassette in the back. When the bike is loaded, I do make good use of that 30-34 combination.

On my Roubaix SL2, 50-34 and 11-28 seems to work though. I do miss that 42 teeth chainring though.
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Old 07-15-12, 05:10 AM
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Originally Posted by fstshrk
Boy, do I feel wimpy. My Jamis Aurora has a 52/42/30 ultegra triple crankset and I have a 12-34 mountain cassette in the back. When the bike is loaded, I do make good use of that 30-34 combination.

On my Roubaix SL2, 50-34 and 11-28 seems to work though. I do miss that 42 teeth chainring though.
Yeah...gearing is a bit of a conundrum. Lower complexity of 50-34 to be sure but big hole in the middle and constant shifting between little and big rings and triples are awesome for steep riding...and likely prefer a triple if living in the mountains.
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Old 07-15-12, 05:25 AM
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Officially ten speed campagnolo short cage derailleurs are listed as handling 26t max - though when looking into this last year for a trip to the French Alps I read some people had managed to get it to work even with a 29t... But tolerances were tight.

Didn't risk it in the end and bought a ten speed Centaur mid length cage derailleur for the trip.
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Old 07-15-12, 06:39 AM
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I've made the assumption in this discussion that we are talking about 10 speed, not 11 speed. Only 11 speed offers a 12-29 and there is only one cage length available, but it will work with a 12-29 and 50/34.

With 10 speed, all that's offered is a 13-29.

Soon, there will be more RD and crank options.

https://www.campagnolo.com/jsp/en/new...ewscatid_3.jsp
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Old 07-15-12, 07:17 AM
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Who makes an 11-28 for Campy besides IRD? That was one of my reasons for leaving Campy a few years back. Lack of 11-26 & 11-28 options to run with a compact.

An 11-32 IRD cassette came stock on our Cannondale Tandem. The shifting was tolerable at best and I recently ditched it for a Shimano XT 10 speed 11-32 with excellent results.
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Old 07-15-12, 01:00 PM
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Thanks guys...I assumed a 11-28 was available for Campy 10s. My bad.
I am debating that I may just sit tight until I swap out my entire driveline.
If I had to deal with big hills, I would have to change now but pretty flat where I live.
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Old 07-15-12, 01:22 PM
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Originally Posted by Campag4life
Thanks guys...I assumed a 11-28 was available for Campy 10s. My bad.
I am debating that I may just sit tight until I swap out my entire driveline.
If I had to deal with big hills, I would have to change now but pretty flat where I live.
I have had Campy since 2006 and it works well. I have no complaints but do plan on replacing my triple for a compact at some point. I had thought that I would get Campy again but now Ultegra Di2 11 speed with an 11/28 compact is starting to look appealing but it may be another year before it is available. I just don't know what the long term reliability of electronic shifting is compared to mechanical. Also, will electronic systems be obsoleted by the next version of electronic shifting. It would suck if parts were not available for a 4 year old Di2 system.
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Old 07-15-12, 03:26 PM
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Originally Posted by Carbon Unit
I have had Campy since 2006 and it works well. I have no complaints but do plan on replacing my triple for a compact at some point. I had thought that I would get Campy again but now Ultegra Di2 11 speed with an 11/28 compact is starting to look appealing but it may be another year before it is available. I just don't know what the long term reliability of electronic shifting is compared to mechanical. Also, will electronic systems be obsoleted by the next version of electronic shifting. It would suck if parts were not available for a 4 year old Di2 system.
Same here CU...been riding Campy a long time but may leave the fold next time for Ultegra Di2 11 speed with 11/28 compact just as you describe. No time horizon tho...maybe a couple more seasons because my 2010 10s Campy is still going strong and very pleased with the shifting on my new bike.
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