Also any 8/9 speed derailleur work with 10 speed as long it's not those shadow/clutch one.
So 11-36 will work? Says max 34t on Velobase for M730 XT
Depends. I bodged a 9 speed cassette to test out 11-36 on 8 speed. It shifts....but that's not saying much really. It shifts badly. Could probably be adjusted to a degree, but frankly, I was happy with the range offered by 11-34.
You were using a 9 speed cassette with an 8 speed drivetrain?
@Chak started
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So 11-36 will work? Says max 34t on Velobase for M730 XT