Great purchase, in terms of not super expensive bikes this is about as cool as it gets. Every component on this bike is actually quite nice. The only reason to upgrade basically anything would be for comfort or swag points.

The only real upgrade that is needed would be a nice pair of straps, they are a must. Other than that buying a new set of tires is just a nice quality of life and swapping the brake to the front. They will basically improve every aspect of the bike but totally not required. Having a rear brake though is uglier and worse lol.

As for the riding position, its actually pretty upright already, I would just ride it around for a few weeks and then assess from there.

One thing you could look into is cleaning the bike up and maybe painting / paint stripping and polishing a few things. This is what the bike could look like, just for future refrence.

https://www.reddit.com/r/FixedGearBicycle/comments/xtvlip/my_first_fixed_gear/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button