i found this on craigslist for 350$



and i'm thinking of buying it.

ive seen some other prologue frames on craigslist too, but whenever i google prologue, i get nothing. i'm sort of thinking its a local builder. but i'm not sure. any input? any information would be good.

What exactly did you put into Google?

I did:
prologue bicycle frames

And got this as the first hit:
https://www.prologuebikes.com/

Which doesn't seem to be what you're looking for...

And that's not the Schwinn Prologue...

Nor a Koga Miyata Prologue...

yeah, thats what i got too. i searched velospace as well and only got schwinns and miyatas

I think it might be the Prologue Madison Aluminum Track Frame

https://www.prologuebicycles.com/

But I really have no idea.

Good luck!

cable braze ons don't inspire feelings for it being a quality track bike. also, the fork ends aren't parallel to the ground (they seem to line up with the chainstay) so the geometry will slightly change depending on where your wheel is in the drop out, not usually favorable. the seat tube aero section reminds me of a walmart denali road bike, at best of a visp.

i'd pass. like, run away.

$350? Really? You can probably find an actually reliable aluminum/carbon frame like a T1, TK3, or Pista Concept for around $300-400. Keep looking.