Can I fit 3 x9 speed crankset to 3 x 8 speed cartridge I have a Merida hybrid cycle fitted with Shimano XT Deore 3 x 8 speed (42/32/24T). The crank has a few worn teeth and I would like to replace with Shimano XT Deore (48/36/26T). The seller states this is for 3 x 9 speed gear set, can I fit to my cycle?
Yes, there are no complications with running a 9 speed crankset on an 8 speed drivetrain. You can see image below that some 9 speed cranks are even listed as being 9/8 speed cranks. You shouldn't encounter any problems, but you will have you readjust your front dérailleur to make room for the larger ring, and double check your chain length on big rings after it's installed.