http://www.pinkbike.com/video/209808/ Second impression: I have seen that this design (unified rear triangle w/ low pivot) has been all but...

Rod's RATTy Street bike: 14.6" chainstays, 21.75 TT, 70.5 HA, 74 SA, 0mm BB

Doug's trails/street frame: 22.75" TT, 15.4" CS, 69 HA, 70 SA, -15 BB  designed around 100mm fork Almost there. 

Rod's RATT ride: 21.75TT, 70.5HA, 74ST, 14.6"stays, 5.2lbs, super-short DOs, Euro BB, 27.2 seatpost I ran out of tubing for a ...

24" MTB: 69 HA, 71 SA, -10BB, 135 disc rear, 14.25" CS

 Integrated chain tensioners Andrew's street 26" This is the first 26" frame that I have made that has a sub 15" chains...

 A super low mounted pinchbolt and a soon to be 14.5" chainstay for a 26" street machine