Cool retro brakes

[Cicli]

Anyone know what is these?
Pretty cool setup.
Why didnt they work? Or did they?

http://www.ebay.com/itm/Marinovative-Decelerator-Vintage-Brakes-for-26-650b-700c-Titanium-Retro-/112254826315?hash=item1a22e8b74b:g:t3IAAOSwqBJXWre k


Thoughts?

[Dirtdiggler]

I remember those. I had the avid version called tri aligns.

[Louis]

Thoughts?

$$$

[tuscanyswe]

Those are $$$ but r extremely rare, thats all i know of them really. Not into mtb stuff. Came off a bike i moved for a friend.

Happy to make a better price for a forumite ofc.

[Cicli]

$$$

There is that. But they are really cool.