Similar to A transition Double, which seem to be o.k for flex, though i have never got the chance to ride one.
Though with german construction ( onooka.com/wp-content/uploads/2012/09/onooka-prototyping-9401.jpg ) and attention to detail, as well as what seems like very modern frame testing (though these photos are of the "ronic" testing);http://onooka.com/wp-content/uploads/2012/09/IMG_9042.jpg
onooka.com/wp-content/uploads/2012/09/IMG_9057.jpg

the results being looked at by man and machien;http://onooka.com/wp-content/uploads/2012/09/IMG_9129.jpg

and the man seems to like what he finds;http://onooka.com/wp-content/uploads/2012/09/IMG_9193.jpg

though whether the frame probes ( onooka.com/wp-content/uploads/2012/09/onooka-ronic-developing.jpg ) help with the rigidity of the Ampak... its anyones guess.

wish I could ride one to find out.

 The Frame Specs;FRAME SPECS
Material: AL 6061-T6
tubeset: triple butted down tube, custom shaped seat tube, tapered seat and chainstays, downtube FEM calculated gain (Gusset)
Rear Shock: RockShox Bar R
Rear Travel :: 95mm
rear wheel mounting width: OLD 135 x 10mm
Dropouts: D8 Nanox dropout system for integrated chain tensioner
Maximum size: 26 × 2.35 "
Seatpost degree: 30.9
Seat clamp size: 34.9
Headset: 1 1/8 "semi integrated headset systems
BB : 1.37x24tpi, 73mm / Euro BB (BSA)
ISCG-05 standard
brake mount: IS-2000
Max disc diameter: 180mm
Weight: 3.5 kg (including shock)
Color: dark blue

GEO
(Based on an axis-crown length of 494mm / equivalent to about 100mm travel / 30mm overrun)
Top tube length: 501mm
Reach: 416mm
chainstay length: 405mm
Seat tube angle: 65.2 °
head tube angle: 68 °
seat tube length: 330mm (CT)
head tube length: 110mm
BB height:-15mm below the axle line
Wheelbase: 1075mm

SHOCK DATA
Shock length: 165mm
leverage ratio: 1:2.43
Buchsenmaß frame: 8x24W ID (inner diameter / width)
Buchsenmaß diversion: 8x38W ID (inner diameter / width)

 The Build specs;Frame: Onoka Ampak E1 frameset AL 6061-T6
Fork: Sountour SF12 Duro DJ - RC 20QLC air (aluminum Steurrohr)
rear damper: Rock Shox Bar-R 165mm (air - Solo Air, oil damping, air pressure and rebound adjustment)
Handlebar: Antitrust Backyard Mid AL6061-T6
Stem: Antitrust Sector Stem Pro - cold forged and CNC machined
handles: Antitrust Onion Griiffe
Headset: integrated cartel Empire Semi - sealed bearings
Front Brake: Avid Elixir 1 - 160 mm disc
Rear Brake: Avid Elixir 1 - 160 mm brake
caliper: Leafcycles 80s Seat - Pivotal System
Seatpost cartel Piv post - Pivotal System
Crank: Antitrust Vector crank 3-piece 100% CroMo / 16 tooth spindle
BB: Cartel Euro BB - 4-way sealed bearings
Sprocket: Antitrust Essential chainring 25T AL6061-T6
chain: KMC Z401
Pedals: Antitrust Cosmos pedals
front hub: Antitrust Bonfire FR with disc brakes - 20mm thru axle system - sealed bearings
rear hub: Antitrust Bonfire Dirt - industrial bearings - - 11Zähne Driver System 6 pawls - Female
Rims cartel Santana Dirt rim - hollow - AL 6061-T6
Tires: Maxxis DTH 26 "x2.3
Weight: 13.6 (including pedals)
Color: dark blue

 Dig, Ride, think. Combine these when ever possible.
oh and a quick Note / Apology to the world;

(Assume) I do not own these bikes.
my bikes are not worth the internet's time.
neither is my riding skill,
or photography,
or videos.

I just sometimes come across others that are,
and so hope to share their genius with others.

I take no Credit for the shots or riding.

I am just another member of the Audience.

 It was going to come out befour, under the name "Distric 8", but they were not allowed the name.
here it is under its old name;http://www.pinkbike.com/news/Random-products-part-one-Eurobike-2011.html

 oh... and then there is always someone willing to use their teeth to do some further testing;http://fstatic1.mtb-news.de/f/m8/wi/m8wisqymlcj3/large_Foto.jpg?0

 though riding with the cables and bike does give a sort of cyborg sort of appearance;http://sphotos-h.ak.fbcdn.net/hphotos-ak-prn1/554166_292586127516857_497932149_n.jpg

 Onooka Bikes, they were going to be called "Distric 8", they are now onooka bikes...

onooka.com

 looks yummy but possibly flexy in the rear tri? cant tell from this angle but what do i know i have scoliosis.

 fstatic3.mtb-news.de/f/8t/vs/8tvsgklhaa2l/large_OnookaAmpak-Gewinnspiel-5.jpg?0

frame in snow...

 fstatic1.mtb-news.de/f/uu/rx/uurxbrn9zjme/large_Onooka-Ampak-02.jpg?0

built up onooka!

 What is this anitrust brand? any info on them?

 a small rider owned, German company for slopestyle/Dirt Jump.

 That thing is so nice!