When is it time to replace chainrings?

MountainPete

I have a new frame on order :-) I'm putting most bits from my current bike on the new frame, and replacing the 'essentials' in the drive train. I have got a new cassette and chain, but how worn can a chainring get before chainsuck comes into play?

nicklouse

you cant say until it happens.

But sheldon has some nice pictures showing worn rings with old and new chains.

Pics of yours would give an idea.

Gingersaurus

As Nick said, we need some pics. Usually it's when the teeth get worn into a point (shark tooth) but we can't tell without a picture.

MountainPete

OK! I've got two pictures below :-) Apologies for the muddy bike - it's been exceptionally wet here!

dunker

about every 4-5 chains? but they can last longer or shorter depending on which manufacturer, quality, material. can tell when they're going as they get noisy with a new chain, kinda just sounds old. those look alright though.

t-bone-king

Thats got plenty of life left in it! you can wait till the teeth look like fins or waves.

MountainPete

Thanks guys! That's exactly what I wanted to hear :-) My bike is well overserviced (although it doesn't really look like it here!) - I've had these chainrings for nearly 2 years now so I'm pleased they're lasting!

stumpyjon

Yeah they do look OK. I just wait until the chain suck starts. Usually happens with a new chain though.