What's this noisy!

Dec 15, 18 13:10

Post #1 of 21 (2203 views)

Hi

I need some help and I'm not sure where to go from here. I need a bike mechanic and fitter! :)

Bought a felt ia10 about a year ago (marked down). Rode a few times on the trainer. I was still getting used to it ..

Then I moved to Canada and bike got damaged during shipping. 3 and a half months later, new frame arrived. (Yes, that's right. It took that long) Pick up bike from local bike shop that put it together and first ride on trainer I hear this really noisy racket from drivetrain.

Shop says it's the best they can do and to make smooth I need a new crankset. They said mixing brands like that will never be as smooth. (Not sure it was like that before moving...)

I also know right now my fit is off. My old felt b 14 was comfy!

Thoughts?

Re: What's this noisy! [lkc] [ In reply to ]

Dec 15, 18 13:35

Post #2 of 21 (2166 views)

trying to post video...

it's not as bad as when I picked it up
some gears are ok
but some are still pretty bad imo

https://photos.app.goo.gl/3odRMdqGDAuZfU366

Re: What's this noisy! [lkc] [ In reply to ]

Dec 15, 18 13:47

Post #3 of 21 (2147 views)

Need more info. Rear derailleur, cassette, chain, crank, etc. what’s the setup?

Looks like you’re in the biggest cog in the back (cross chained). Does it do that in other gears?

Last edited by: Sean H: Dec 15, 18 13:48

Re: What's this noisy! [lkc] [ In reply to ]

Dec 15, 18 14:02

Post #4 of 21 (2126 views)

That sounds like a 10s chain on an 11s cassette. Or, very stretched chain.

The brand of crank is fully irrelevant.

Is the drive train new?

Re: What's this noisy! [Sean H] [ In reply to ]

Dec 15, 18 14:09

Post #5 of 21 (2119 views)

I didn't change anything from what came with it. What might be different from stock ...
Front derailleur r8050
And rear derailleur r 8050 ultegra di2 11 speed

Does that help?

The crank set that come with the bike is made by vision.

And yes, the most noise is when I'm in the big chain ring and the first couple of the big cogs.

Re: What's this noisy! [iamuwere] [ In reply to ]

Dec 15, 18 14:12

Post #6 of 21 (2111 views)

I bought a chain from premier, haven't tried it yet.

The drivetrain is very new!

Re: What's this noisy! [lkc] [ In reply to ]

Dec 15, 18 14:12

Post #7 of 21 (2110 views)

Stop crosschaining.

Re: What's this noisy! [lkc] [ In reply to ]

Dec 15, 18 14:14

Post #8 of 21 (2107 views)

Is that an 11s cassette?

Re: What's this noisy! [iamuwere] [ In reply to ]

Dec 15, 18 14:18

Post #9 of 21 (2098 views)

Yes, 11

Re: What's this noisy! [lkc] [ In reply to ]

Dec 15, 18 14:19

Post #10 of 21 (2094 views)

The rear derailleur hanger might be bent.

Re: What's this noisy! [jimatbeyond] [ In reply to ]

Dec 15, 18 14:22

Post #11 of 21 (2087 views)

jimatbeyond wrote:

Stop crosschaining.

Ok

Re: What's this noisy! [lkc] [ In reply to ]

Dec 15, 18 14:22

Post #12 of 21 (2083 views)

Possible chain too short. And crosschaining.

Re: What's this noisy! [iamuwere] [ In reply to ]

Dec 16, 18 1:00

Post #13 of 21 (1956 views)

iamuwere wrote:

That sounds like a 10s chain on an 11s cassette. Or, very stretched chain.

The brand of crank is fully irrelevant.

Is the drive train new?

Shimano cranksets are quite noticeably quieter than aftermarket ones, especially when cross chaining.
Short chain stays and short chains make it worse.

Re: What's this noisy! [lyrrad] [ In reply to ]

Dec 16, 18 6:29

Post #14 of 21 (1816 views)

Had to look up chainstays... :/

Would you still call this cross chaining?

https://photos.app.goo.gl/g4U1499idafbKLJZA
https://photos.app.goo.gl/PB2MbSX9PXwfx6qM7

both videos are in the same gear

Last edited by: lkc: Dec 16, 18 6:32

Re: What's this noisy! [lkc] [ In reply to ]

Dec 16, 18 8:08

Post #15 of 21 (1767 views)

It is a regular skipping sound, like the chain is trying to move to a different gear. I think it is on the third cog from the biggest, so that is not crosschaining and should not be noisy. It sounds like the rear derailleur is mis-adjusted. It is possible that it is chain rub on the FD, but I don't think so. Can you see if the chain is touching the FD cage? Or, can you tell if the sound is definitely coming from the RD area?

Can you post a profile picture of the RD installation? I am curious if the little direct mount extension part is installed and if so, whether it is correctly resting against the tension stop. (It should be extending rearward, horizontally from the mount point.)

Re: What's this noisy! [exxxviii] [ In reply to ]

Dec 16, 18 10:20

Post #16 of 21 (1705 views)

exxxviii wrote:

It is a regular skipping sound, like the chain is trying to move to a different gear. I think it is on the third cog from the biggest, so that is not crosschaining and should not be noisy. It sounds like the rear derailleur is mis-adjusted. It is possible that it is chain rub on the FD, but I don't think so. Can you see if the chain is touching the FD cage? Or, can you tell if the sound is definitely coming from the RD area?

At first I thought it was the front, but I now think it's from the back. I can't see where it would be touching my FD cage
It's like the chain doesn't fit or yes the RD is off for those gears

Is this helpful?
https://photos.app.goo.gl/MtTTGfQnAfHSR6M66

Re: What's this noisy! [lkc] [ In reply to ]

Dec 16, 18 10:32

Post #17 of 21 (1691 views)

lkc wrote:

At first I thought it was the front, but I now think it's from the back. I can't see where it would be touching my FD cage
It's like the chain doesn't fit or yes the RD is off for those gears

Is this helpful?
https://photos.app.goo.gl/MtTTGfQnAfHSR6M66

Yes, that picture helps. The RD is installed correctly. I have seen a few cases where the new Shadow derailleurs for direct mount were attached incorrectly.

There is a process to align the RD with micro adjustments. Maybe the shop did not follow the Shimano process. Also, it looks like the cage is extended further forward than mine in that same gear combo. But, my bike is not on hand to compare now. (I have an IA16 with the same Di2 drivetrain as yours.)

Re: What's this noisy! [exxxviii] [ In reply to ]

Dec 16, 18 10:40

Post #18 of 21 (1683 views)

Thanks!
So you have vision mixed with shimano

I will look online or find a shop that might want to help.

I am not very familiar with DI2, but I guess I would/could/should learn! :p

Last edited by: lkc: Dec 16, 18 11:13

Re: What's this noisy! [lkc] [ In reply to ]

Dec 16, 18 11:30

Post #19 of 21 (1648 views)

lkc wrote:

So you have vision mixed with shimano...I am not very familiar with DI2, but I guess I would/could/should learn! :p

Sorry for the confusion... I only have the R8050 Di2 FD & RD. I have a SRAM Red 22 crankset. (The comments about non-Shimano cranksets are bogus. Many, many bike makers package other cranksets with Shimano shift bits for a lot of very good reasons.)

This is Shimano's user guide for your Di2. Go to page 129 and follow their process for aligning the RD. It is very easy.

http://si.shimano.com/.../DM-R8050-02-ENG.pdf

Re: What's this noisy! [exxxviii] [ In reply to ]

Dec 16, 18 11:58

Post #20 of 21 (1622 views)

Many thanks!
Appreciate it

Also found your thread about Di2 install
NICE!!

Re: What's this noisy! [exxxviii] [ In reply to ]

Dec 17, 18 6:52

Post #21 of 21 (1471 views)

exxxviii wrote:

lkc wrote:

So you have vision mixed with shimano...I am not very familiar with DI2, but I guess I would/could/should learn! :p

Sorry for the confusion... I only have the R8050 Di2 FD & RD. I have a SRAM Red 22 crankset. (The comments about non-Shimano cranksets are bogus. Many, many bike makers package other cranksets with Shimano shift bits for a lot of very good reasons.)

This is Shimano's user guide for your Di2. Go to page 129 and follow their process for aligning the RD. It is very easy.

http://si.shimano.com/.../DM-R8050-02-ENG.pdf

No, not bogus, it is well known that shimano cranksets run much quieter especially on short chainstay bikes.
But that is not the case here.
Sounds like the derailleur is too close to the centreline, so I would suspect that even if the shop set it up correctly and that it has been knocked out of alignment since, hence being tucked in a little too far.
I also suspect that the chain is too short and that there is too much B tension as the top pulley is miles away from the cassette.
Align hanger, tune gears.

A broken pawl in the hub can also sound like that.

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