Heavily upgraded FULL size Montague Urban 21 -Speed folding bike with attached "Rack stand."
I bought this bike for visitors to use, and as a project to keep my apartment living wrenching skills in practice. As you can see with my details, I stuck with the gray, white, red, and black palette. This bike folds in the middle making it easy to store and transport, and it has the Montague "Rack stand" that flips down to hold the bike when parked. Since this is my "guest" bike, it does not have a lot of miles, the tires still have the "nubs."
The upgrades:
Replaced the cheap freewheel 700 wheels with freehub/cassette SRAM Rise 40's
Replaced crappy OEM tires with quality Schwalbe Marathon Supremes.
Replaced caliper brakes with Disk brakes
Replaced OEM plastic pedals with Aluminum.
Swapped the crappy OEM hand grips for grips with palm support.
Replaced the heavy OEM seat for one with better weight, comfort, and color match.
Swapped the shorter but heavier 110mm stem for a lighter FSA 120mm.
Added a stem riser for more upright comfort riding.
I did not replace the drive-train which remains the Shimano Acera 3x7 that came on the bike.
Here is the bike price with none of these upgrades. https://www.montaguebikes.com/product/urban/