Chain falling of chain ring

[derrick]

What are the causes of the chain dropping of the large front chainring, when it on the thee large rings on the cassette? deraillers are adjusted properly, just got worse over the last few months.

 

[Drago]

Inappropriate chainline, warped or buckled chain ring, who knows?

 

[ColinJ]

Stiff link(s) in the chain due to salty spray from gritted winter roads?

 

[Punkawallah]

Try swapping the chain for a new one. If nothing changes, you still have a new chain :x)

 

[wiggydiggy]

Wrong chainring.

My bike was supplied without a big/small chainring, which are designed to keep the chain on. Have a look at your ring to make sure it is one. (The teeth are two different sizes).

 

[fossyant]

Worn chainring will cause drop !

 

[Ming the Merciless]

Too much power, she cannae take it.

 

[Punkawallah]

Too much power, she cannae take it.

‘She’d better, or it’s your arse, Scotty!’

 

[Gunk]

I’d still start with the easy stuff, front mech, I would re-check alignment and adjustment screws.

 

[Smokin Joe]

What are the causes of the chain dropping of the large front chainring, when it on the thee large rings on the cassette? deraillers are adjusted properly, just got worse over the last few months.

Which side does it drop? If it's back towards the middle the cable has become slack and needs adjusting.

A worn chain or ring will not cause it.

 

[derrick]

Which side does it drop? If it's back towards the middle the cable has become slack and needs adjusting.

A worn chain or ring will not cause it.

New chainring all sorted.