Replacement chain and cassette

mathematics
mathematics Posts: 453
edited March 2014 in MTB workshop & tech
Unfortunately bringing my MTb out of retirement and riding it has stretched the chain. So need a new one, but not sure which?

It's an 8 x 3 set up. XT rear m750 XT front, the chain is marked as IG31 narrow.

Which chain do I need to buy please?

Also what cassette if that has been ruined by the stretch?

Thanks

Chris

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