eBay and Craigslist finds

They're the Spin Trispokes, made of carbon composite (cheap plastic) not carbon fibre. Probably worth about £80-100 to anyone who rides only on perfectly flat surfaces (any bumps any they're likely to snap). They're also not ideal for velodrome as the blades are oval rather than aero like the HEDs or ealier Specialised. Like I said, cheap components.

Ah, thanks, looks like I saved myself some money then...