Campy question (compatibility)

[SamIAm]

I know this is a dumb question, but what makes 11 speed, 11 speed? I want to try to stay on 10 speed stuff, but I have some 11 speed parts I took off another bike.

Front/Rear derailleur and shifters.

Could I take 10 speed shifters and use the Front/Rear derailleur?

Would I need to use an 11 speed chain and would it work on a 10 speed cassette and crank?

Can 11 speed shifters be downgraded to 10 speed?

Thanks in advance.

[Dave]

There is a small difference in the actuation ratio of the two RDs. An 11 speed RD will have a little more travel than required, if used with 10 speed shifters. The difference is not large and a small amount of over-travel is usually tolerable. A 10 speed chain should work fine.

The FD cage is narrower and that might be a little annoying, with regard to needing to trim the cage position more often.

[Columbus SLX]

There is a small difference in the actuation ratio of the two RDs. An 11 speed RD will have a little more travel than required, if used with 10 speed shifters. The difference is not large and a small amount of over-travel is usually tolerable. A 10 speed chain should work fine.

The FD cage is narrower and that might be a little annoying, with regard to needing to trim the cage position more often.

Interesting, I've never had this experience. I run Centaur 10 Ultrashift ergos with Athena 11 FD & RD, and a 10 speed Campy chain. Honestly, I can't make the things mis-shift in the least - the whole system seems to operate perfectly.

Since I run a 10 speed chain in the 11 speed RD, I opened the RD cage about .010" with some very thin washers behind the jockey wheels. I did notice some chain rub against the outer cage before I did that.

[Dave]

There's not enough difference in the RD travel to cause poor shifting and over-travel is more tolerable than under-travel. Campy considers the two to be not-compatible, so I checked this out, back when 11 speed first came out, late in '08.

With a 10 speed RD coupled to an 11 speed shifter and the chain off the bike, the RD would align about half way between the 10th and 11th cogs, after all 10 shifts. I cured that problem by grinding down the cable clamp bolt to the root of the threads, in the area where the cable contacts the bolt. This effectively shortens the lever arm and increase the throw a bit.

Also, if you measure each individual cable pull on an 11 speed shifter, they are a bit differently spaced than 10 speed. Overall, the average pull is 2.6mm, compared to 2.8mm for 10 speed, but the first two pulls of an 11 speed shifter are the same 2.5mm as a 10 speed shifter, then become smaller for several shifts and then larger toward the larger cogs.

A 10 speed shifter will pull 2.5mm five times, 3mm twice and 3.5mm twice.

It may also be that the 2009+ 10 speed shifters have slightly different pulls than the older model that I tested. Campy changed the geometry of the 10 speed RD to be similar to the new 11 speed model.

[eBAUMANN]

10 speed chain on 11 speed rings?
Anyone tried that one yet?

[FlashUNC]

10 speed chain on 11 speed rings?
Anyone tried that one yet?

The 11 spd rings are spaced tighter together, but I don't imagine any issues otherwise.

I ran 10 spd on a Chorus UT 11 spd crank for a short while with no problems.

[Dave]

10 speed chain on 11 speed rings?
Anyone tried that one yet?

No problem at all.

[Columbus SLX]

No problem at all.

Indeed, works great, just did it for mts of misery.

[oldpotatoe]

I know this is a dumb question, but what makes 11 speed, 11 speed? I want to try to stay on 10 speed stuff, but I have some 11 speed parts I took off another bike.

Front/Rear derailleur and shifters.

Could I take 10 speed shifters and use the Front/Rear derailleur?

Would I need to use an 11 speed chain and would it work on a 10 speed cassette and crank?

Can 11 speed shifters be downgraded to 10 speed?

Thanks in advance.

Small spool in lever, that dimension, when shifted, pulls the RD a certain amount that corresponds to cog spacing in the rear. Combo of spool dimension and RD geometry.

Use 11s Ders with 10s Campagnolo shifters? Yes as long as the innardfs are the multi-higher gear type.

Match the chain to cogset..11s chains are narrower. No need to match the chainrings

Yes, some 11s shifters can be converted. But it's getting more difficult. You can buy the entire shift innards for 10s..and add the brake blade...depends on the lever tho.

[oldpotatoe]

10 speed chain on 11 speed rings?
Anyone tried that one yet?

I have installed many 11s cranks onto otherwise 10s 'systems' and they work just fine.

[eBAUMANN]

I have installed many 11s cranks onto otherwise 10s 'systems' and they work just fine.

awesome news, with the "11 speed" rings im assuming?

[oldpotatoe]

awesome news, with the "11 speed" rings im assuming?

Many customers have Campagnolo 10s systems but want a new crank, like carbon, SR/Record or Chorus..all are 11s since 2009...but just put on and go ride. In spite of what web based BS resellers say, no need to change the rings or use a 11s chain..plug and play with a 11s crank..

[ultraman6970]

11 cranks work fine with 10 speed, the fd dont know what you have in there so even you can make 10 work with any brand all the way probably up to 8 speed cranksets, even remember a guy using a10 speed with an old record C crankset. With shimano who knows, but with campagnolo the FD will shift pretty much what ever you have in there.

The FD wont have any problems... the RD wont work with a 10 speed cassette and 10 speed shifters.


But... the 11 RD could work just fine with with a 10 speed shifter if you add a j-tek shiftmate unit. But sincerely im not sure because the combination is not in the chart but 11 shifters going to 10 with a 10 RD work fine with a jtek-2 because thats what i have in one of my bikes. (I would send an email to the guy to find out)

Probably the only thing you need is too change the cable bolt/clamp thingy for a wider one, that is just the opposite to make 10 speeds RDs with 11 which the only thing you have to do is to make the bolt thinner.

Good luck.

[oldpotatoe]

11 cranks work fine with 10 speed, the fd dont know what you have in there so even you can make 10 work with any brand all the way probably up to 8 speed cranksets, even remember a guy using a10 speed with an old record C crankset. With shimano who knows, but with campagnolo the FD will shift pretty much what ever you have in there.

The FD wont have any problems... the RD wont work with a 10 speed cassette and 10 speed shifters.


But... the 11 RD could work just fine with with a 10 speed shifter if you add a j-tek shiftmate unit. But sincerely im not sure because the combination is not in the chart but 11 shifters going to 10 with a 10 RD work fine with a jtek-2 because thats what i have in one of my bikes. (I would send an email to the guy to find out)

Probably the only thing you need is too change the cable bolt/clamp thingy for a wider one, that is just the opposite to make 10 speeds RDs with 11 which the only thing you have to do is to make the bolt thinner.

Good luck.

I've put 11s RD onto 10s Campagnolo systems as a replacement and they work just fine w/o a shift thingy. I just did that, put an Athena all silver onto a gents 2005 or so Centaur system and it worked really well.

[John M]

....the multi-higher gear type.

Can you please clarify what this means? Thnx!

[oldpotatoe]

Can you please clarify what this means? Thnx!

Meaning the type of shifter where you can select more than one higher gear at a time for the RH lever..ala ERGO from 1992 thru 2006. Record and Chorus for 2007/8..all ERGO from 2009/2010..SR/Record/Chorus for 2011/2012/2013.

Standard ERGO-not Xenon of any year..Ultrashift for 2009/10, not Powershift anything.

[ultraman6970]

Thanks a lot potato... I assumed the things wrong then... since the pull is different I assumed they were not going to work. Good to know, not I can do my transition to 11 less painfull :D

[John M]

Meaning the type of shifter where you can select more than one higher gear at a time for the RH lever..ala ERGO from 1992 thru 2006. Record and Chorus for 2007/8..all ERGO from 2009/2010..SR/Record/Chorus for 2011/2012/2013.

Standard ERGO-not Xenon of any year..Ultrashift for 2009/10, not Powershift anything.

Thanks. Follow up question is how does the multi-gear feature relate to 11s/10s interchangeability? All my bikes have 10s shifters of this type so sort of planning ahead if and when I need to replace an RD.

[oldpotatoe]

Thanks. Follow up question is how does the multi-gear feature relate to 11s/10s interchangeability? All my bikes have 10s shifters of this type so sort of planning ahead if and when I need to replace an RD.

Makes no difference for the rear derailleur..only the front..Need a proper FD for Powershift shifters and also for 2007/8 Centaur and Veloce, when they got 'Xenon' shift guts..need a 'QS FD.