[JaredP91]

When riding my bike tonight I shifted to my large chainring, and while it had the desired effect in terms of power output, I noticed a constant clicking noise. The performance of my bike was not impacted, but I am wary of it.

I am new to road bikes and in no way mechanically minded, so if anyone can advise what may be causing the noise it would be appreciated.

Topic

[kil0ran]

Also check its not something

Also check its not something on your shoe doing the same. The front mech cable is a really, really common source of this noise.

For the chainring bolts you’ll probably also notice it once per revolution with maximum power/weight applied, which will be between 12 o’clock and 3 o’clock on the chainring when viewed from the right hand side of the bike.

Assuming it’s a Shimano chainset it’s easy to check and adjust, you don’t need to remove anything from the bike to do it. There’s 5 of them and they attach the inner chainring to the outer. Turn the bike upside down and you can get to them from the non-drive side, just rotate the cranks to get to each one. From memory they’re either T25 or T30 Torx head bolts. Likely to be shiny silver, easy to spot. They work loose surprisingly easily over time, so it’s something I check monthly on my bike. Just do them up as tight as you can.

[check12]

Is the noise coming from the

Is the noise coming from the cassette? (If so probably need to turn the cable adjuster on the rear derailieur anti clockwise one turn (maybe more maybe less) , (indexing rear derailieur) )

if it’s coming from the front derailieur (chain rubbing on it) that may need setting up but I don’t think that’s your issue (but it might be)

[Rich_cb]

It’s probably the front
It’s probably the front derailleur.

You can try trimming it when you shift to the easier gears and if that doesn’t do the job you may need to index it.

If you have an adjuster either in the cable line or on the derailleur that should be quite easy. If not it might be worth getting your local bike shop to do it if you’re not very confident with the mechanical side of things.

GCN did a pretty good explanation video here:

[JaredP91]

It makes the noise on all of
It makes the noise on all of them, but gets more noticeable as I shift through into easier gears on the cassette.

[Spangly Shiny]

If it is a wumper (one per
If it is a wumper (one per revolution) click check that your drive side crank arm is not contacting the front mech or the end of the front mech cable. Then check that your chainring bolts are tight.
Check also that your Q/R’s are not either over or under tightened.

[check12]

Shift through the gears on

Shift through the gears on your cassette does it do it in all of them? 

[Author]

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