Assault Frameset

Whatchoo know ‘bout going big, boy? I can tell you what our DF5 Factory riders know and that is that there ain’t no street, park, or jump line that can throw off the 2012 Assault. Designed and refined through feedback from our riders, the assault is a burly little low slung rig designed to trick, flip, stick and hit. Boom!

Diamondback DF5 Pro Factory Team Rider Kelly McGarry sums it up like this: “The Assault is one of my favorite bikes in the Diamondback line up. It’s quick and snappy in the turns and fly’s predictably and smooth. The geometry works well for my style of riding, whether that be two, one, or zero wheels on the ground!”

The 2012 Diamondback Assault boasts of a 6061-T6 Aluminum frame with a tapered head tube, Mission formed top tube and steel reinforced horizontal BMX dropouts, these frames are stout and fully capable of going big. And weighing in at a respectable 4.5 lbs makes this one of the lighter dirt jump frames on the market.

Rocking a single speed specific horizontal dropout keeps things clean and simple. 69° head and 72° seat angles combined with significantly compact 15.3" chainstays and a 22” sloping top tube make the Assaults easy to throw around and manual for days.

The Assault frameset comes out of the box standard with an FSA No.57 tapered headset with 1.5 / 1 1/8" alloy cups and sealed cartridge bearings and a Diamondback signature Pivotal saddle and Alienation Billy Club post.

Diamondback is a brand that built its reputation on top of the line BMX bikes. 30 years later, we’re bridging that gap from our high end BMX to our high end mountain and road bikes. The Assault frameset is just the rig to do this.


  • 6061-T-6 Aluminum Assault Dirt Jump Disc only Frame
  • FSA No.57 Taper Headset
  • Alienation Pivotal Post w/DB BMX saddle

Bike Specs

Sizes MD 22" Top Tube 
Frame Assault Dirt Jump 6061-T6 Aluminum frame w/Taper head tube, Mission Formed Top Tube, ISCG 05, steel reinforced horizontal BMX dropouts.
Fork N/A
Rear Shock N/A
Seatpost Alienation Billy Club Pivotal 30.9
Headset FSA No.57 Taper , includes additional reducer crown race
Colors Kiwi White
Hubset (F) N/A (R) N/A
Extras Owner’s manual, Chainstay Protector, Clear Coat
Note Specifications Subject to Change


Size MD 22" Top Tube
Seat Tube Length ** 13.0mm
Standover Height 27.0mm
Top Tube Length * 22.0mm
Head Tube Length 125.0mm
Head Angle 69.0mm
Seat Angle 72.0mm
Wheel Base 1055.0mm
Chain Stay Length 390.0mm
Fork Offset 45.0mm
BB Height 330.0mm
Stem Length mm
Handlebar Width mm
Crank Length mm
Seat Post Length mm
* Measured Horizontally ** Measured from Center

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