Aggression: A Chopper Profile

Aggression got off to a rocky start. Begun as a customer order that fell through, Chip Miyler at Midwest Customs decided to complete the chopper project on his own.

Chopper Image Gallery

Aggression Chopper, Profile View
Aggression is a custom motorcycle featuring
elaborate sheetmetal work. See more chopper pictures.

A swingarm frame with rear suspension by Progressive mounts 8-inches-over inverted forks at a 51-degree rake. Extreme Machine wheels at both ends feature fine detailing. In front, the brake rotor matches the wheel design; in back, the pulley -- which overlays the brake rotor -- does the same.

Power comes from a 124-cubic-inch S&S engine polished to a show finish. Air enters through a Midwest Choppers air cleaner, exiting via a Martin Bros. exhaust system.

Elaborate sheetmetal work features a silver spine running from front fender to rear, bisecting the deep purple paint. An aggressive scoop is formed into the base of the frame's downtube, while both fenders wrap deeply around the tires.

As it turned out, six months of toil were required to complete the build, but a Best Radical Custom trophy at a show in Indianapolis made it all worthwhile. Aggression may have started on a low note, but certainly finished on a high one.

Aggression Chopper Specifications

  • Year: 2005
  • Class: Radical
  • Owner: Chip Miyler
  • Builder: Chip Miyler/Midwest Choppers
  • Model: Aggression
  • Frame: Midwest Choppers, 4 up, 4 out
  • Forks: American Suspension, inverted, 8 inches over
  • Rake: 51 degrees
  • Rear susp.: Progressive swingarm
  • Front wheel: Xtreme Machine, 21-inch
  • Front brake: HHI, disc
  • Rear wheel: Xtreme Machine, 18-inch
  • Rear brake: HHI, inboard disc/pulley
  • Rear tire: 280 mm
  • Engine: 124-cubic-inch S&S
  • Exhaust: Martin Bros.
  • Trans.: Accessories Unlimited 6-speed, right-side drive
  • Paint by: TT Customs

Check out the next page for more photos and details of the dramatic Aggression chopper.

For more information on custom choppers and motorcycles, see:

      Aggression Chopper Pictures

      The Aggression custom motorcycle, built by Chip Miyler and Midwest Choppers, won a Best Radical Custom trophy. See more pictures and details of this sleek chopper below.

      Aggression Chopper, Central Spine
      The silver central spine appears on the frame,
      fenders, fuel tank, and even the seat. The air-cleaner
      cover has a matching ridge.

      Aggression Chopper, Cooling Fins
      Note the serrated edges on the engine's
      cooling fins, a rare custom touch. Also unusual
      are the small lights frenched into the rear
      section of the swingarm.


      For more information on custom choppers and motorcycles, see: