Ultegra CS-R800 11 Speed Cassette - Runs Rough

charliedid · #1 06-12-2019, 04:42 PM

11-34 Ultegra CS-R800 11 Speed Cassette

Ultegra chain and drivetrain. All new-ish. 11 spd freehub and using supplied spacer.

Anyone else have this issue? Noisy in general and rough feeling. Also found another issue doing research where the third largest cog(27) will make a click every revolution. This seems widely referenced on the web. I had not noticed but a quick check reveals this as well.

Anyone with this issue find a solution? It shifts just fine and is not really noticeable except when cleaning chain etc. But now I know...

Different chain? Different cassette? Just shut up and ride?

eddief · #2 06-12-2019, 05:00 PM

It rides fine on the road with no issues but you hear something when cleaning? Is the bike upside down when you clean the chain?

charliedid · #3 06-12-2019, 05:03 PM

Quote:

Originally Posted by eddief

It rides fine on the road with no issues but you hear something when cleaning? Is the bike upside down when you clean the chain?

Hi Eddie

No bike is in a stand when cleaning.

Thanks

eddief · #4 06-12-2019, 05:10 PM

curious.

Quote:

Originally Posted by charliedid

Hi Eddie

No bike is in a stand when cleaning.

Thanks

charliedid · #5 06-12-2019, 05:14 PM

Quote:

Originally Posted by eddief

curious.

This is where I found the 27 tooth skip issue

https://www.competitivecyclist.com/s...assette#review

https://www.youtube.com/watch?v=YHHS...ature=youtu.be

eddief · #6 06-12-2019, 05:24 PM

that video did not show the person adjusting anything while turning the cranks. seems like a chain line or cable tension adjust issue...or a defect

.

charliedid · #7 06-12-2019, 05:34 PM

Quote:

Originally Posted by eddief

that video did not show the person adjusting anything while turning the cranks. seems like a chain line or cable tension adjust issue...or a defect

.

That guy was er something...

Yeah I'm convinced it's some manufacturing issue.

What I want to know is do I need a new chain or a new cassette?

John H. · #8 06-12-2019, 05:40 PM

I would try a new chain- But I did have an 8000 cassette that had a bad cog. Mine was 3rd one down from the 34, so 27?
Never ran right on multiple bikes with different chains. Shimano warrantied it and gave me a new cassette.

charliedid · #9 06-12-2019, 05:45 PM

Quote:

Originally Posted by eddief

that video did not show the person adjusting anything while turning the cranks. seems like a chain line or cable tension adjust issue...or a defect

.

Sorry

58cm Gunnar Sport. R8000 derailleur. The correct one.

charliedid · #10 06-12-2019, 05:48 PM

Quote:

Originally Posted by John H.

I would try a new chain- But I did have an 8000 cassette that had a bad cog. Mine was 3rd one down from the 34, so 27?
Never ran right on multiple bikes with different chains. Shimano warrantied it and gave me a new cassette.

Of course. I was going to buy it wholesale from Shimano and got a deal here for basically the same money and the right length crank arms.

I guess I could press them on it. Which cassette did they give in replacement a newer run of the same?

ColonelJLloyd · #11 06-12-2019, 07:01 PM

Quote:

Originally Posted by John H.

I would try a new chain.

Same. And not a Shimano chain.

charliedid · #12 06-12-2019, 07:07 PM

Quote:

Originally Posted by ColonelJLloyd

Same. And not a Shimano chain.

If I had to just jump right in I'd try a KMC chain first. Have you had the issue or know that a non Shimano chain works?

I wonder if this has anything to do with this cassette being able to run on both 10 and 11 speed FHB?

Who knows.

DRZRM · #13 06-13-2019, 07:39 AM

You mean HG800 right? The 11 speed 11-34 that can fit a 9-11 speed MTB hub or 11 speed road hub? I get a bit of this too, known issue. Did Shimano ever deal with it? Are new ones better?

charliedid · #14 06-13-2019, 07:48 AM

Quote:

Originally Posted by DRZRM

You mean HG800 right? The 11 speed 11-34 that can fit a 9-11 speed MTB hub or 11 speed road hub? I get a bit of this too, known issue. Did Shimano ever deal with it? Are new ones better?

Yes sir.

ColonelJLloyd · #15 06-13-2019, 08:38 AM

Quote:

Originally Posted by charliedid

If I had to just jump right in I'd try a KMC chain first. Have you had the issue or know that a non Shimano chain works?

Never had this issue, no.

I personally use a SRAM 1170 with a 105 level 11-32 11s cassette and it is quieter and smoother than the Ultegra chain it replaced. Maybe that was just a bad chain, but it was noisy and broke at three different links on a short tour, whereas the two KMC quick links held fine.