It's a rebranded Monoc track frame with different forks.
I have a road frame for sale branded as a GB with the same tubes, and have seen a couple of the track frames about. Wharry had one, and one of the Leeds guys has one.
Forks were branded as Monoc somewhere actually. Must be their non-drilled track fork. This is the bike you have to blame I converted to brakeless.
Forks were branded as Monoc somewhere actually. Must be their non-drilled track fork. This is the bike you have to blame I converted to brakeless.