I reckon my young bloke made something like that out of his Leggo stuff. I can picture something like this..
A spectator walking around the pits spots a yellow Maico and says "nice 400". The owner begins with an enthusiastic "No no, it's a Franken bike! It's a '79 chassis with a 490 engine, reed valve, modified blah blah blah, cost a million and 2 years to do blah blah blah, better than the factory blah blah blah." The spectator begins to walk off muttering "still just a breako, wonder if it'll finish a race..."
Sorry Paul & Brad, all in good fun. At least it keeps you off the streets.
Cheers,
K