youngoldbloke
The older I get, the faster I used to be ...
I have just fitted a new chain on my 2018 M30 Gain (Tiagra), having covered over 3100 miles, and I fitted new front disc pads a couple of weeks ago. The rear still have plenty of use left in them. Other than regular cleaning and lubrication (I use Progold Prolink), swapping the tyres soon after purchase (my choice), and changing the rim tapes, that's it maintenance wise. Costs - around £30 + tyres, and electricity of course!). Pretty good, I consider.