The red was only available as a frameset, came with lugged steel fork rather than carbon, it's classed as the 'alternate' version, as far as I know the green (with gold decals) is the 2021 version.
We just built up one of the red ones for a customer and it’s a nice frame, 725, fork is smart, paint is nice (if you like red) clearances about right with 28s + chromoplastics (might squeeze 32 in but would be tight). If you can get one for £300 that’s an absolute bargain.
The red was only available as a frameset, came with lugged steel fork rather than carbon, it's classed as the 'alternate' version, as far as I know the green (with gold decals) is the 2021 version.