Shimano Chains

bobgfish

Hello

Can anyone tell me what is the major difference between the Ultegra CN 6600 chain and the Ultegra CN 6700 chain for 10 speed?

I can get the 6700 for half the price of a 6600 online but the vendor has a note which says.

"Attention! Only compatible with crankset FC-6750/6700/7950/7900 and front derailleur FD-6700/7970/7900."

Also is there any advantage to using the ultegra chain over a 5600 chain? or anyone know where to get compatible chain that does lots of miles and cost less than 20 euros?

I have a 105 Triple setup which is the old model 5600 series.

Thanks

ADIHEAD

The 5700/6700/7900 series is has asymetrical plates which are shaped to perform better with the new series of group sets. I use a 6700 chain with a mixture of cassettes, some 6700, some 6600 and the change quality is no different to be honest. You could also try a KMC, which uses a better linking system, or just use a KMC link on your Shimano

crankycrank

Another vote for KMC and you get the reusable link with their chains. The Shimano 5600 will also work just as well as the 6600 but Shimano do not include a quicklink. I believe the only difference between the two Shimano's is the 6600 has nickel plating on all the links (or something to that effect) which has little to no effect on chain life or shift quality.

Anonymous

I use Shimano, Sram and Campagnolo groupsets. All my bikes use KMC chains though...

markos1963

+1 for KMC chains, fit and forget.

Rodrego Hernandez

KMC make chains for Shimano so are a pretty safe bet.

markyone

Just been in garage with my mate putting on a new chain sram.
This is after replacing a brand new ultegra chain which we fitted sat and has snapped.
Googled it and found this
http://cozybeehive.blogspot.com/2010/02 ... ilure.html
go with sram or kmc.

bobgfish

Maybe thats why I can get Shimano 6700 chains so cheap all of a sudden. Just over 13 Euros each. Is it also why there is now a 6701? I've been buying 6600 ones but they seem to only last about 1500Km before my chain checker shows it's time for a replacement. They happen to be closer to 22 euros each. The KMC chain before this did 2500km but I can't seem to get anything cheaper than about £30 from KMC and need to gte if from the UK. Might try a cheaper SRAM say the 1030 (12 euros) and see what happens next. Any other ideas. Don't object to paying more for quality items just when you seem to be replacing the same bits each month you start to wonder.

marin_maniac

*Touches wood*

Never had a problem with Ultegra chains. I've had about three of the 6700's and no probs.

janwal

http://www.chainreactioncycles.com/Mode ... elID=33382
These mavic chains are very good.No problems with them on my Giant and my mate has one on his Ribble.And they come with a split link for ease of cleaning and fitting.No rubbing or changing problems .They were selling them in packs of three recently but the offer is not on at the moment.

ADIHEAD

I'm on my third with no problems. I use a KMC SL on my summer bike and Ultegra's (3pack bought cheap) on the winter, but with KMC links. No problems at all. I'm a spinner rather than grinder if that makes any difference?

markyone

bobgfish wrote:

Maybe thats why I can get Shimano 6700 chains so cheap all of a sudden. Just over 13 Euros each. Is it also why there is now a 6701? I've been buying 6600 ones but they seem to only last about 1500Km before my chain checker shows it's time for a replacement. They happen to be closer to 22 euros each. The KMC chain before this did 2500km but I can't seem to get anything cheaper than about £30 from KMC and need to gte if from the UK. Might try a cheaper SRAM say the 1030 (12 euros) and see what happens next. Any other ideas. Don't object to paying more for quality items just when you seem to be replacing the same bits each month you start to wonder.

If you google it there is a lot on that chain.
My mate had it snap twice since sat.
Also inspected chain and there are lots of little fractures on most of the side plates,it must of been a bad batch.

Rodrego Hernandez

There was a problem with the heat treatment of a batch of Ultegra chains that resulted in them breaking - mainly fitted as OEM though.

Karl2010

Ive just bought a Park Tools Chain Checker and my chain is practicaly at the 0.1% stage.
I was going to replace with Ultegra Chain but that meens £30.00 chain tool & £20 chain.

Would a new KMC chain cause my Cogs to wear quicker than a new Ultega chain?
And will a KMC chain shift just as smooth as a new Ultegra chain?

ADIHEAD

Karl2010 wrote:

Ive just bought a Park Tools Chain Checker and my chain is practicaly at the 0.1% stage.
I was going to replace with Ultegra Chain but that meens £30.00 chain tool & £20 chain.

Would a new KMC chain cause my Cogs to wear quicker than a new Ultega chain?
And will a KMC chain shift just as smooth as a new Ultegra chain?

No, but you realise you need a chain tool to cut the new one to size, regardless of how it's linked? So you need a chain tool anyway! I reckon there is a chance you may need to change the cassette also if it's got to 1% but you may be lucky. I would try it without but if you get any slippage/jumping when accelerating hard then it's cassette also

Karl2010

Humm there, may have ben some slippage and jumping.

I only managed to get the 0.1% indicator in part of the chain. The rest of the chain was at 0.75%

ADIHEAD

Karl2010 wrote:

Humm there, may have ben some slippage and jumping.

I only managed to get the 0.1% indicator in part of the chain. The rest of the chain was at 0.75%

Jumping with the old chain? Normally it wouldn't jump if it's worn to the same degree as the chainrings and cassette. It's when you put a new chain with a worn drive train that you normally get problems, the chain would have to be more worn than that to cause it to jump on rings that are of a similar condition I would think. Are you sure the current issues aren't to do with poor indexing, dirt etc? Give it a proper clean and lube, then re-index if you've not already done so? Ultegra cassettes are only £40ish on Ribble etc and a spare's always good so perhaps order one anyway and fit if it still jumps with the new chain. If you've not got the tools then just take it to a good bike shop, then you know the jobs done right

bobgfish

Ok. So went to clean my Ultegra 6660 chain today. Looked it over and what did I see. A whole bunch of cracks on the outside of the chain. This ones six weeks old and done 1400KM. Managed to snap with hands on one of the links as a test. at least 3 creaks found.

Looks like it affects more than just the 6700 batch. I will be going back hopefully for a refund !!!

Time to swap to another brand and since KMC looks like the mosts recommended I'll be trialing those next.

Thanks for all your help.