chain worn to 1.0 - can I just replace the chain?

[Mazz]

Last time round, I fitted the cassette and chain new at the same time (10 speed). Just measured the chain wear with a 'drop-in' Park tool and it's on 1.0 already.
Do you think I can get away with just replacing the chain?
I guess I'll just give it a go and see if the new chain/old cassette mesh OK.

 

[markemark]

I change my chain every year and my cassette every other year. Seems to work out ok for me.

 

[roubaixtuesday]

Just try it and see.

Very unpredictable IME; but worth having spare cassette and chainring ready just in case (though you can always put the old chain back on again of course)

 

[Ajax Bay]

Almost certainly not. Just crack on with the cassette and chain till it starts jumping - on the sprocket you use most. Then replace both. Be aware that running both on like that will increase wear on the chainring you use most cf 'normal', [edit to add] and the more % the chain is elongated the more wear you'll experience on the chainring.

 

[Yellow Saddle]

Almost certainly not. Just crack on with the cassette and chain till it starts jumping - on the sprocket you use most. Then replace both. Be aware that running both on like that will increase wear on the chainring you use most cf 'normal'.

It wont start jumping if you use the same chain. It only jumps (skates over the top of the sprocket) if you put on a new chain on a worn cassette. There are some caveats to vary from the above, but those will all be unique situations not applicable to everyday riding.

 

[Yellow Saddle]

It wont start jumping if you use the same chain. It only jumps (skates over the top of the sprocket) if you put on a new chain on a worn cassette. There are some caveats to vary from the above, but those will all be unique situations not applicable to everyday riding.

I change my chain every year and my cassette every other year. Seems to work out ok for me.

Yeah that will work, but it is overkill. Cassettes are expensive and most of us want maximum life from them before replacing. Also, chains don't count years. They don't care. All they care about is revolutions x load x the coefficient of hygiene.