• "Puky Chopper - The Widowmaker."
 

The Puky Chopper, originally rescued from the steel scrap of the FKFS, served us well in putting up the pylons during the testing time. Because of a radical transformation of the fork, the need to provide an additional source of power other than the driver arose.

Sticking with the tradition of purist hard-tail choppers, a single cylinder engine was chosen. It works on the only true non-conform two-stroke principle. Since its completion in April 2008, the Puky Chopper kicked ass and took names. Ride hard - die hard - Puky Choppper.

Specifications

General

  • Power: 3 hp
  • Weight: 9 kg
  • Acceleration 0-10 km/h: 3.8 s
  • Top speed: not measurable with current technology

Carriage

  • revolutionary one-track vehicle with an elasto-kinematic stiff frame
  • friction mounted headset
  • Wheelbase: 1020 mm
  • Wheels: 12.5 x 2ΒΌ Huajian racing tire
  • Brake: Alibi 2-chop front wheel brake

Engine

  • Air-cooled two-stroke one-cylinder engine, installed transversal to the driving direction
  • Capacity: 49 cc
  • 14 mm "Deep Breath" racing carburator
  • Loss lubrication

Chassis

  • Steel tube frame, elasto-kinematical optimized by FEA
  • Double-bound frontwheel extended fork
  • RAMSIS-optimized position of the driver to reach the best weight distribution

Drive Train

  • Transmission connected via chain to the rear axle
  • One-speed racing gear with centrifugal clutch and variable final transmission