Somebody opened their Christmas present early.... and it was a metal folder! The front downtube reminds me of Greeves Challenger MX. I like the outboard drive sprocket on the swinging arm spindle which prevents the chain tightening as the suspension rises. Not so keen on the rear mudguard arrangement. Wondering why the footrests are mounted so far back. Very interesting bike that looks like it was designed before it was built which is not the case with a lot of specials.