Ok - hoping this is not off topic by skirting the CR vintage time span, but I would love the definitive word on Delta brakes! (er, speed attenuators)
I have heard there are two generations, and I can identify two different styles of parallelogram 'arms' in various pictures.
I've been told the first generation was a smaller size.
I've been told the 'black' cable grommet brakes are the newer ones, but I've seen identical looking inner 'works' with both white and black cable grommets.
Finally I've seen Croce D'une delta brakes with what looks like a third completely different inner mechanism. Amusingly called 'Crotch Dune' by some well meaning collector (actually I think that¹s a gay hangout on West Hampton Beach) There is a black pair of these on ebay with a huge $700+ current bid. What's up with that?
Anyway I've always liked the look of the c-record gruppo and these brakes, but understand that they are heavy, work like poo, and are dangerous to boot. Can one of you experts clarify? One more thing - just curious how rare the replacement Colbalto brakes are?
Thanks all
Greg Arnold nyc