I've got a set of these, as used by the Locost racers.
£100 ono.
Phone on 01983 291570
[Edited on 3/6/17 by Neville Jones]
Wow, they been used to Moor a boat?
No, just sat in a damp shed on the floor.
I'll give them a quick wire brush and spray can job to do a full recondition before ebay.
[Edited on 4/6/17 by Neville Jones]
These are still here.
The surface rust hides a set of excellent uprights complete with brakes.
Locost racers use these.