Chainset compatibility

Paulkingk

Hi guys i wand to put a External BB Chainset on my winter bike. It currently has a square taper unit. Will a shimano 9 speed chainset work with 10 gears on the back and a ten speed chain or will i have to get 10 speed chainrings? Are the dimensions of a hollowtech 9 speed chainset any different to the 10 speed ones?

supersonic

The dimensions are ever so slightly different, but it works fine.

However many 10 speed ones are the same price as 9 speed ie Deore.

Paulkingk

Nice one. I'm off to search around flea bay