>>1393156if you can't work it out yourself, then nothing.
you're more likely to have things that need minor adjustments, rather than replacing or upgrading because they're outright broken, and that could be a lot of stuff.
in terms of upgrades, better brakes are the big one but don't do it until you've tried adjusting what you have or gotten fed up with them.
As i said, tyres. That will make a substantial difference.
some nice nylon pinned flat pedals like pic related.
a different saddle if you don't find that one comfortable.
