From 9 speed.

Chain and cassette are worn and I fancy a clutch mech. I’ve already got a 10 speed rear shifter in the spares box.

Guessing I will need : –

Chain
Cassette
Clutch mech

Will I get away with using the 9 speed chainrings ?
Which Shimano rear clutch mech is recommended ?
How do I know if I’m on a medium or long cage rear mech ?

Thanks

Zee or xt mech.. Pretty sure the chain rings will be fine

[/quote]Will I get away with using the 9 speed chainrings ?
Which Shimano rear clutch mech is recommended ?
How do I know if I’m on a medium or long cage rear mech ?

9 speed chainrings fine

Up to you which mech, they are all quite cheap.

Theory to me is triple = Long, Double = medium , single without extender= short. Extender can use short or medium cages.

Cheers Guys.

Will the chain length be the same ?

Thanks

Will the chain length be the same ?

Assuming the largest cog on the cassette is the same – yes.