Just noticed that the jockey wheels on my XT derailer are shot and need replaced.

Can I replace these with LX wheels or does it need to be XT?

£6 LX versus £21 XT

LX are fine. I've had them in for the last 6 months with no issues.

Someone will be along to disagree in a minute. Saying they will make your bike snap in half, head explode and wife leave you.

Cool.

I'll go for LX then.

Couldn't see it being much of an issue unless they were a different size.