1) seatpost 24cm
2) race frame-geometry
3) tapered seat tube! the seat post had only contact over their length in the seat tube. after them the seat post "is free"! outcome: broken frame
4) production steps: 1st - stitched, 2nd - brazed
5) height of bottom bracket: 26cm
6) chainstay: more than 40cm
7) flat delay- and seat angle
more than 150€ for frame and fork only is a bad ebay-joke!
@provenrad:
some things about the diamant-gdr-track frames:
1) seatpost 24cm
2) race frame-geometry
3) tapered seat tube! the seat post had only contact over their length in the seat tube. after them the seat post "is free"! outcome: broken frame
4) production steps: 1st - stitched, 2nd - brazed
5) height of bottom bracket: 26cm
6) chainstay: more than 40cm
7) flat delay- and seat angle
more than 150€ for frame and fork only is a bad ebay-joke!