Trying to identify this bike frame so I can build it with compatible components, AND so I can calculate it's value. Any help massively appreciated.
Actual identification may be difficult. Valuing a frame whose provenance you can’t show is is also difficult. It is possible for me to say a few things.
- This is an aluminum frame with an aero downtube and a cutout in the seat tube. And it may take an aerodynamic seatpost, which unfortunately tend to be proprietary to the frame unless the seat tube is round. You will need to check this.
- It has what I would normally call track dropouts in the rear. It also has a guide near the head tube (in the downtube) for internal cable routing. Thus it probably isn't a track frame (you could measure the distance between the dropouts to confirm, track frames are 120mm vs 130mm for road). There should be some sort of screw in each dropout to help you adjust how close the wheel sits to the seat tube.
- I would have guessed this could be a Cervelo, maybe mid 2000s or early 2010s. However, see the area on the chainstay just above the dropouts? I don’t know that Cervelo ever used that shape. There are no visual matches on this vintage Cervelo bike website.
- I would guess this is a triathlon or time trial frame. There weren't many aero road frames from the time period I think this frame is from. One of the prominent aluminum aero road frames from that era was the Cervelo Soloist, and we've established that the dropout design is wrong for Cervelo.
It looks similar to an early `90s road bike I had from Mongoose (yes the BMX makers) but with some differences.
Dropped chainstay and high-aspect ratio downtube are similar.
Yours has trackends not dropouts and might have a 120 mm OLD measurement.
Also your top tube is more formed whereas mine was a chunky tube, and a more aggressively aero seat tube+post.
There are many more photos in https://criggie.org.nz/pictures/bikes/mongoose/
We don't really do valuations, other than Aluminium is worth around $6 a kilo as scrap metal, very region-dependent. A bare frame with no provenance and a lot of missing parts before its a bike, is just scrap metal until you build it into a working rideable bike. You don't even have a fork and that's hard to match.