>>17854721000 is getting up there for a single speed m'boy, for a track bike it's entry level, and for road it's BSO territory unless you're talking used bikes.
It's hard to get a decent roadie under 2500USD now, but /n/ is full of poorfags and unracers so they'll tell you different.
For general short distances, 90s MTB w slixxx is still king of bicycles however.
>>1785489Stop being a leglet and go do some lunges and single leg exercises like box jumps and leg press.
>>1785559Rigid 90s MTB with 2" wide slixx like schwalbe kojaks or similar. Extra points if it has trigger shifters, deore components, v brakes.
When you get it, make sure all the bearings are good. You'll likely also need to redo the cables, replace chain and brake pads.