Grant Fondo
Guru
- Location
- Cheshire
yes HG chains are compatible, 105, Ultegra etc. I've got both the Ultegra on one bike and KMC X11 on 105 bike, no difference in noise between the two.
105 R7000 noisy in large front CR
- Thread starter Sloth
- Start date
Page may contain affiliate links. Please see terms for details.
yes HG chains are compatible, 105, Ultegra etc. I've got both the Ultegra on one bike and KMC X11 on 105 bike, no difference in noise between the two.
OP
OP
Sloth
Senior Member
Not sure, I'll have to check and take a pic.
OP
OP
Sloth
Senior Member
The LBS seem to think that a Shimano HG chain may be a little quieter on my 105 drive train than the KMC X11-EL.
Something to do with Shimano chains working better on Shimano set ups, i.e. less hesitancy in the chain leaving the CR teeth = less friction = less noise?
Last edited:
- Location
- Somewhere wet & hilly in NW England.
I thought the noise was all the time on the large chainring? Is this correct?
AFAIK the correct Shimano and KMC chain widths will be the same for your 11spd system. In which case I don't see how swapping the make of chain will have a different result.
Find some way of safely getting at least the rear wheel off the ground (even if someone holds it for you) and rotate the cranks slowly and, using a torch if necessary, you should easily be able to spot where the chain is hitting the FD cage.
Do that and you'll be half way home.
OP
OP
Sloth
Senior Member
I thought the noise was all the time on the large chainring? Is this correct?
Yes, it is but I'm going to check it again on Thursday, just to be sure.
AFAIK the correct Shimano and KMC chain widths will be the same for your 11spd system. In which case I don't see how swapping the make of chain will have a different result.
Find some way of safely getting at least the rear wheel off the ground (even if someone holds it for you) and rotate the cranks slowly and, using a torch if necessary, you should easily be able to spot where the chain is hitting the FD cage.
I intend to set up some sort of makeshift rig to hold the bike off the ground so I can do this
Do that and you'll be half way home.
fossyant
Ride It Like You Stole It!
- Location
- South Manchester
Thursday... ? Now, come on !! I'd have the bike stripped and rebuilt by then.
OP
OP
Sloth
Senior Member
Sorry, I'm busy with work and eating, sleeping...etc....that's the first chance I'll get to go out.
fossyant
Ride It Like You Stole It!
- Location
- South Manchester
We need pictures of the mech and chain rings etc. That won't take till Thursday. You actually need to spin the gears etc at home - pop bike on washing line by saddle, to see where noise is coming from (or rest saddle on neck as you look down at bike gears).
OP
OP
Sloth
Senior Member
Yeah, appreciate your help but it's still not going to happen until Thursday, I'm working from home then so will have more time.
- Location
- Inside my skull
There are two things I think it can be, pending you getting around to following the diagnostic ideas posted.
1. Chain is rubbing FD at some point as the cranks rotate.
2. FD gear cable is getting hit by the crank arm as it rotates.
Can’t think it can be anything else given what you’ve described, in the absence of anything more concrete in your description of the nature of the noise heard. Plus absence of any photos to show if it’s all assembled properly, which we are kind of assuming as LBS did the work, and you haven’t done anything to it since.
1. Chain is rubbing FD at some point as the cranks rotate.
2. FD gear cable is getting hit by the crank arm as it rotates.
Can’t think it can be anything else given what you’ve described, in the absence of anything more concrete in your description of the nature of the noise heard. Plus absence of any photos to show if it’s all assembled properly, which we are kind of assuming as LBS did the work, and you haven’t done anything to it since.
Last edited:
iluvmybike
Über Member
Have you checked that the little plastic insert on the inner side of the fd is still there - they can drop off
- Location
- Somewhere wet & hilly in NW England.
I bought a spare one for my bike - just in case, although it now means the original will never fall off or wear out!
OP
OP
Sloth
Senior Member
No I’ve not messed with it at all, it’s as it left the LBS.
Hopefully photos tomorrow.
OP
OP
