Shimano EP8 "clicking" sound after installing new chain

Turtlehead

Turtlehead

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Jan 5, 2023
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Location
Citrus Heights
2022 Orbea Rise H30
Replaced my chain this morning
As soon as I started riding/pedaling, I got this constant clicking sound.

At first I thought it was my derailleur and did a bunch of trailside troubleshooting there to no end. Makes the same sound even with the motor turned off and pedaling.

Any and all suggestions would be greatly appreciated.

Here's video of the sound:
<div style="padding:177.78% 0 0 0;position:relative;"><iframe src="" frameborder="0" allow="autoplay; fullscreen; picture-in-picture; clipboard-write; encrypted-media; web-share" referrerpolicy="strict-origin-when-cross-origin" style="position:absolute;top:0;left:0;width:100%;height:100%;" title="ep8"></iframe></div><script src="https://player.vimeo.com/api/player.js"></script>
 
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You've fed the chain through the derailleur incorrectly. Check it and do it again.

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Chain guide above chainwheel. Any rubbing ?
Also B-Gap. Is it set correctly, or derailleur cage or cagewheels could rub.
Also. Did you put back the same number of chain links ?
 
Astro66 said:
Chain guide above chainwheel. Any rubbing ?
Also B-Gap. Is it set correctly, or derailleur cage or cagewheels could rub.
Also. Did you put back the same number of chain links ?
Click to expand...
I pulled the chain guide up to where it had no possibility of touching, didn't fix it

B-gap - I played with it trail side, but did not neccessarily set it correctly - will check this tomorrow

Number of chain links, I've always just held the new and old chain up in the air and removed anything beyond the older chain's length. Probably a half-link short on the new chain in the sense that the old chain's stretch put it between links. BUT - I started watching a video earlier that was discussing how to set the correct chain length, so might be worth trying to sort that out from scratch.
 
Did you get the right chain ? Link thickness varies.

Also on this. Was the original chain and chainring correct ? Maybe you've fitted the right chain. But the original chain and chainring were wrong, so you now have a mismatching chainring.

Also on this. If you have skinny/fat teeth on chainring. Have you aligned skinny/ fat on the chain ?
 
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I had the same issue on my 25 rise m10 recently. Installed a new xt chain. I reinstalled old chain and no noise. I finally figured out it was how the chain was meshing with front chainring, which is steel. It seemed like a chain width issue. It probably would have gone away after the chain broke in a bit. I ended up getting an alloy chainring and a kmc e12 chain and noise was gone.
 
Astro66 said:
Also on this. If you have skinny/fat teeth on chainring. Have you aligned skinny/ fat on the chain ?
Click to expand...
That was my first thought also. You have a 50/50 chance of getting it wrong …or getting it right. Narrow/Wide cogs on the chainring must mesh with the chain.

An alloy chainring will tend to fit an old stretched chain over time …until it doesn’t or you start to get chain-suck.

Chain checker and a new link is a good idea.

For measuring chain length in the future, and for different bikes, use a wall or door frame trim to hang and measure specific chain lengths. Nail a finishing nail (or nails) at 6’ in height and hang your new chain from there. Mark the correct length (for any chain) near the bottom with a sharpie or tape.

Hanging a chain this way is better than laying it on a bench and stretching the chain, or counting each link.
 
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