Originally Posted by
ammarolli
I want to simplify that bike as I mostly use it as a commuter/town bike and I don't need a wide range of gears as I don't ride lot of steep long hills. If I need more gears I just use one of my other bikes.
My crankset/chainrings have a slight wobble in them and the fd is tired and that's the also why I want to change the drivetrain.
The rear hub is a shimano deore and I know that it takes up to a 10 speed cassette.
I know it's going to cost money but I think it's going to be worth it in the long run as I would probably need to replace all those parts on the bike anyway in near future.
perfectly legit reasons. Not that you need our approval....
You could consider getting a new BB, like an external cup one with sealed bearings. When I did the similar conversion I bought a shimano hollowtech 1x crank and it came with a new BB for "free". You'll save some weight, more rigidity and if your bike is worn as you say, the old BB may need replacement anyway.
When I changed from 3x9 to 1x9 I felt liberated, even with less range.