Campagnolo Chorus Freehub/Lockring Woes

[frieddoh]

Hi Everyone,

This is my first posting, a pal of mine on the board recommended that I ask for some advice from the community, so here I am.

I am in the process of a new bike build and have hit a roadblock with the rear wheel. The lockring for the cassette does not thread onto the freehub which seems to be a common occurrence. Went to LBS, they said could be lockring, could be freehub... an that I could replace either but should start with some gentle persuasion to get beyond the threads that are not catching. Spent a while tonight persuading with no success... I don't think such nice bits and pieces deserve a hack/kludge/square peg in a round hole.

Here are the particulars of what I have on hand sourced from various sellers:
Campagnolo Chorus hubset (9 to 11 cassette)
Mavic open pro SUP clincher rims, 36 holes
Campagnolo Record 10 speed cassette with & lock ring

I think that the cause of the problem is that the freehub threads are toast

My plan is to replace both the lockring and the freehub, but I'm unsure of what I need in terms of part numbers for lockring and freehub. The freehub job looks doable but it may be worthwhile to let LBS get the job.

Thanks for your help, it is greatly appreciated!

I've attached photos for reference,

Dan
Durham, NC

[oldpotatoe]

Hi Everyone,

This is my first posting, a pal of mine on the board recommended that I ask for some advice from the community, so here I am.

I am in the process of a new bike build and have hit a roadblock with the rear wheel. The lockring for the cassette does not thread onto the freehub which seems to be a common occurrence. Went to LBS, they said could be lockring, could be freehub... an that I could replace either but should start with some gentle persuasion to get beyond the threads that are not catching. Spent a while tonight persuading with no success... I don't think such nice bits and pieces deserve a hack/kludge/square peg in a round hole.

Here are the particulars of what I have on hand sourced from various sellers:
Campagnolo Chorus hubset (9 to 11 cassette)
Mavic open pro SUP clincher rims, 36 holes
Campagnolo Record 10 speed cassette with & lock ring

I think that the cause of the problem is that the freehub threads are toast

My plan is to replace both the lockring and the freehub, but I'm unsure of what I need in terms of part numbers for lockring and freehub. The freehub job looks doable but it may be worthwhile to let LBS get the job.

Thanks for your help, it is greatly appreciated!

I've attached photos for reference,

Dan
Durham, NC

You have a 9s wheel, yes a 10 and 11s cogset will fit but the lockring with the 10s cogset is too large. Need a lockring with '9speed' on it. Steel axle, 1997, early 1998 hub. 10s happened in 2000, aluminum axle hubs.

Jim@vecchios.com has them, about $26.

[frieddoh]

Thanks oldpotatoe! Will drop Vecchios a line.

[nighthawk]

I think you need a 26 mm lockring, specifically. I believe there were 26 and 27 for 9 speed. Trying to thread a 27mm lockring onto that hub will just spin and not catch the threads.

[oliver1850]

I had someone tell me they have a 27 mm lockring that's labeled "9 speed". Every one I've handled marked 9 speed has been 26 mm. I would specify 26 mm when ordering to be clear, or part number CS-201 (12-13T) or CS-301 (11T).

[nighthawk]

I know you can currently buy 9 speed cassettes that come with 27mm lockrings, but the lockring isn't labeled 9 speed. That's why I mentioned it.

[Ken Robb]

Gee, I never had this problem with Shimano. :)

[buldogge]

I guess you stayed away from Dura Ace, or haven't decided to move up to 11.

:p

-Mark in St. Louis

Gee, I never had this problem with Shimano. :)

[donevwil]

Gee, I never had this problem with Shimano. :)

Sure, but that jump to 11 will be a real bitch.

[frieddoh]

All, thanks for the clarification about the different lock rings (and that 26 mm) is what I'm looking for...

As far as the Shimano (got that too and been happy with it) thing goes: I could get yet another hobby and go whole hog and pick up one of these babies:

http://www.amazon.com/Shimano-Sienna-2500-Front-Spinning/dp/B00375BTAA/ref=sr_1_2?ie=UTF8&qid=1393565303&sr=8-2&keywords=shimano+fishing+reels+saltwater

is it indexed?

However, that would mean another hobby and this is more my speed:

http://www.amazon.com/Campagnolo-Corkscrew-Silver-Packaged-Wooden/dp/B003LDW38K

:D

[Ken Robb]

I was in the campy and Shimano 10 speed world but at the moment I am in the 7 and 9 speed world Shimano/Campy about 50/50. I have some nice alloy Chorus stuff that was supposed to go on a Taylor custom but old timers here know how that went south.

[thirdgenbird]

Gee, I never had this problem with Shimano. :)

Yeah, their problems are much worse.

Dura ace freehubs:
Uniglide
Hyperglide 7
Hyperglide 8 (9 and 10)
7800
11spd

[cekte]

Yes, as some folks previously mentioned, you will need a 26.0mm 9 speed Campagnolo lockring. Specifically 26.0mm as Campagnolo made both 27.0mm and 26.0mm with the "9 Speed" markings on it. I have gotten several of each over the years and still have a few of each to positively verify.

[fogrider]

here: http://www.ebay.com/sch/i.html?_odkw=&_osacat=177809&_trksid=p2045573.m570.l1313.TR0.TRC0.H0.X26.0+lock ring&_nkw=26.0+lockring&_sacat=177809&_from=R40

[oliver1850]

Yes, as some folks previously mentioned, you will need a 26.0mm 9 speed Campagnolo lockring. Specifically 26.0mm as Campagnolo made both 27.0mm and 26.0mm with the "9 Speed" markings on it. I have gotten several of each over the years and still have a few of each to positively verify.

I would like to see one of the 27 mm lockrings that has the 9 speed marking if you can find one. I have several 27s that are marked "UD 9/10 type", but have never seen one that says "9 speed".

Ebay sellers often don't know what they're selling and will often decline to measure them. I've always considered anything that says "Brev Int" to be 8 speed, the ones that say "9 speed" to be 26 mm, and everything else to be 27. I know there were some Ti ones (26 and 27), but don't know what they look like either.

[mistermo]

here: http://www.ebay.com/sch/i.html?_odkw=&_osacat=177809&_trksid=p2045573.m570.l1313.TR0.TRC0.H0.X26.0+lock ring&_nkw=26.0+lockring&_sacat=177809&_from=R40

Are 26mm lockrings compatible with 11t cogs?

[nighthawk]

Are 26mm lockrings compatible with 11t cogs?

There's two 26mm lockrings, CS-301 is for 11T, CS-201 for 12-13T first cog.

[oldpotatoe]

Gee, I never had this problem with Shimano. :)

Until shimano finally decided to do 11s...dohhhh!!!

[oldpotatoe]

Original Poster writes-"Went to LBS, they said could be lockring, could be freehub... an that I could replace either but should start with some gentle persuasion to get beyond the threads that are not catching."'


Geeez luizzz....this stuff isn't a black art..or maybe it is???

[fogrider]

I went to several lbss and they didn't have a 26.0 lockring. The eBay sellers that have a 26.0 know what they are.

[buldogge]

I have turned the ID down on a couple to make 11T lock rings. The larger ones seem much more common.

-Mark in St. Louis

Are 26mm lockrings compatible with 11t cogs?

[fogrider]

Are 26mm lockrings compatible with 11t cogs?

the one I got is, but you should ask the seller.

[frieddoh]

Original Poster writes-"Went to LBS, they said could be lockring, could be freehub... an that I could replace either but should start with some gentle persuasion to get beyond the threads that are not catching."'


Geeez luizzz....this stuff isn't a black art..or maybe it is???

Thankfully I have enough common sense to know not to destroy something to "make" it fit. In defense of LBS, I just walked off the street and the guy tried to help... my query was oddball enough and it wasn't in his wheel house or at least in his recent memory. Now I know that there is a difference and I"ll go back to the LBS mech and tell him what the difference is... knowledge is power and all that.

[Ralph]

Now that you know what your problem is, and know the part number you need, E Bay or the Internet is probably your best bet. Unless your local LBS is a Campy shop, probably not much help there.

[cash05458]

Thankfully I have enough common sense to know not to destroy something to "make" it fit. In defense of LBS, I just walked off the street and the guy tried to help... my query was oddball enough and it wasn't in his wheel house or at least in his recent memory. Now I know that there is a difference and I"ll go back to the LBS mech and tell him what the difference is... knowledge is power and all that.

well...I am the "buddy" who recommended asking here...thanks for all the responses...folks out here certainly know their stuff...and unfortunately, I was also the buddy who recommended "just whacking the thing" and giving that a shot...:cool:

note to Dan: don't listen too closely to my advice...

[cekte]

I would like to see one of the 27 mm lockrings that has the 9 speed marking if you can find one. I have several 27s that are marked "UD 9/10 type", but have never seen one that says "9 speed".

Ebay sellers often don't know what they're selling and will often decline to measure them. I've always considered anything that says "Brev Int" to be 8 speed, the ones that say "9 speed" to be 26 mm, and everything else to be 27. I know there were some Ti ones (26 and 27), but don't know what they look like either.

Certainly, no problem. I'll include a photo of one below, inside of a pair of vernier calipers. I've got some NOS and used in both 26mm and 27mm that read "9 Speed" on them.

As a general rule of thumb, you are right, but there always seems to be a few exceptions to the rule (especially with Campy). The "Brev Int." lockrings are 8 speed, the ones that say 9 Speed are sometimes 26mm and sometimes 27mm, and All other Campy lockrings are 27mm. The titanium ones came in 26 and 27, but specifically stated "titanium" on them, the look and feel of the metal is also very different (pretty hard to come by these days).

27.0mm "9 Speed" Lockring
http://i57.tinypic.com/t7g3h4.jpghttp://i59.tinypic.com/15yyko8.jpg

26.0mm "9 Speed" Lockring
http://i58.tinypic.com/o8zas0.jpghttp://i57.tinypic.com/n6oumu.jpg

Both lockrings side by side. 27.0mm on left, 26.0mm on right
http://i62.tinypic.com/2m7wvp5.jpg

(sorry the photos aren't the best quality)

[Ralph]

26 MM 9 lock ring

http://www.ebay.com/itm/CAMPAGNOLO-CASSETTE-LOCKRING-9-SPEED-26-0-MM-12-13-t-/360818782693?pt=US_Cassettes_Freewheels_Cogs&hash=item540279b1e5.

First one I came to on list. Is this what you need? Maybe others lower price.

[El Chaba]

The PMP hubs use a Campagnolo-compatible 16 mm lockring....You would have to get their tool or use an adjustable pin spanner, but they are quite nice....
http://www.pmpbike.net/pmp-bike-en/?product=ghiera-bloccaggio-pignoni

[bluemax]

Certainly, no problem. I'll include a photo of one below, inside of a pair of vernier calipers. I've got some NOS and used in both 26mm and 27mm that read "9 Speed" on them.

As a general rule of thumb, you are right, but there always seems to be a few exceptions to the rule (especially with Campy). The "Brev Int." lockrings are 8 speed, the ones that say 9 Speed are sometimes 26mm and sometimes 27mm, and All other Campy lockrings are 27mm. The titanium ones came in 26 and 27, but specifically stated "titanium" on them, the look and feel of the metal is also very different (pretty hard to come by these days).



Thanks for doing that. Looks as though measuring is the only way to tell them apart. I need to get organized and sort out which of my wheels need 26 mm lockrings.

[thirdgenbird]

The PMP hubs use a Campagnolo-compatible 16 mm lockring....You would have to get their tool or use an adjustable pin spanner, but they are quite nice....
http://www.pmpbike.net/pmp-bike-en/?product=ghiera-bloccaggio-pignoni

That's an interesting fact. I'm going to log that one away.

[frieddoh]

I was able to source the lock ring for Campagnolo 9 speed, 26 mm, 12/13 from Jim at Vecchios. Thanks to all for all the advice and details. Thanks cetke for the photos with the calipers.

Much appreciated and I am really impressed by the amount of advice and feedback.

One other quick question, if you all will indulge me, on a a Campy 10-Speed Record crank, the chain ring bolts are all on the outside except for the one on the crank arm which is on the inside. By chance is this reverse threaded? The one I got seems tight and I've got some WD-40 soaking in there now.

Dan
Durham, NC

[thirdgenbird]

All of the bolts have standard threading.

[frieddoh]

All of the bolts have standard threading.

Well thanks for that! One less thing to remember.

[oldpotatoe]

I was able to source the lock ring for Campagnolo 9 speed, 26 mm, 12/13 from Jim at Vecchios. Thanks to all for all the advice and details. Thanks cetke for the photos with the calipers.

Much appreciated and I am really impressed by the amount of advice and feedback.

One other quick question, if you all will indulge me, on a a Campy 10-Speed Record crank, the chain ring bolts are all on the outside except for the one on the crank arm which is on the inside. By chance is this reverse threaded? The one I got seems tight and I've got some WD-40 soaking in there now.

Dan
Durham, NC

Glad he fixed ya up..no it is correct threaded, lefty-loosey-it is a T-25 torx as well, probably..aluminum also.

[frieddoh]

Glad he fixed ya up..no it is correct threaded, lefty-loosey-it is a T-25 torx as well, probably..aluminum also.

Must be an older crankset... was 5 mm hex head. Overnight soak just gave a reassuring crack of coming free. Maybe I'm just getting old, but Torx? Granted there is probably a more positive lock with torx, but hex is far more sexy IMHO :)

[oliver1850]

Some of those Record cranks have a very thin shim between the ring and the arm. Watch for it when you take the ring off as it's easy to lose.

[oliver1850]

thanks for the pics of the 9 speed lock rings.

Here are 4 different 8 speed LRs. The single one is for 11 tooth small cogs, the other 3 are for 12/13/14s.