Tha Maico engine sure fills the Sprite engine bay (#111) doesn't it!
They wouldn't have supported a team for a bike that "sold very few" in the UK.
You would normally assume that to be true, but on the other hand, are they turning up on UK ebay, in UK vintage racing, or in the mags?
The little correspondance thats been in CDB mag seems to indicate there's not much Sprite stuff in UK.
They must have sold a few of the early ones tho before the export markets opened up.
Maybe by the time the 405 came out the poms realized their limitations & avoided them