Replace chain if I change cassette?

mickisup

Based on feedback I think I need to change a 12/25 cassette to a 11/32 or even 34.

Is this as simple as just switching cassettes or do I need to also change the chain?

The chain is good condition, but need to alter gearing to give my daughter better range on climbs etc.

Thanks

zx6man

depends on miles i guess, but may need some more links too going to a 32 or 34, assuming your rear mech can handle it.

mickisup

How would I know whether the rear mech (Ultegra) can handle it?

zx6man

http://techdocs.shimano.com/techdocs/bl ... ID=jNpKGKn

try that :-)

mickisup

Many thanks, will check out now.

jscl

*Personally* I'd always change the two at the same time anyway. Chains and cassettes mould well to each other, always best to start with a fresh couple and let the relationship develop.