2007 Formula 400 Bike Eligibility

Rules supplied courtesy of Motorcycle Road Race Development Association

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All bikes competing in the Formula 400 series must be clearly identifiable as either faired or naked road race machines with a capacity of no less than 380cc and no more than 400cc.  Motard’s, “Chook Chasers” and bikes outside the cc limits do not fit into the Formula 400 classification.
 
 
  1. Body Shape
    1. As long as it is securely fastened and deemed to be safe to the satisfaction of the scrutineer, any road race fairings may be fitted.
  2. Carburetion
    1. “If it comes with it, it goes with it”. If you have an SP engine that is fitted as standard with flat slides, then you may run flat slides.  If you have an engine that comes as standard with CV carburetors, you must run CV carburetors.
  3. Air Boxes
    1. There are no rules on air boxes.  This leaves riders free to run without an air box, with the standard air box or with a modified or kit air box.
  4. Suspension
    1. Front fork externals must be of the same make or model before January 2001.  Fork caps are optional.  No swapping from upside down and conventional forks either way.
    2. Rear shock must be off the same make or model before January 2001.  It may be re-valved re-gassed, re-sprung and have a remote reservoir fitted.
  5. Brakes
    1. After market rotors are allowed as long as they are the same diameter and thickness as the standard rotor for the make AND model.
    2. Callipers must be standard for the make AND model.
  6. Wheels
    1. Front and rear wheels must be the same width as standard and off a road going model (No lightweight race rims) and must be off the same make or model bike before January 2001. Naked bikes can use the same rims as the other 400’s in the class.
  7. CDI’s and Coils
    1. Must be from the same make OR model before January 2001.
  8. Starter and Alternator
    1. There must be a starter and alternator system in place, in working order and securely fastened to the satisfaction of the scrutineer.
  9. Frame and Swing arm
    1. Frame (main structure) and Swing arm must be standard for the model. Modifications are allowed for ride height adjustment only.
  10. Triple Clamp
    1. Triple clamps must be standard for the model.
  11. Cam Shafts
    1. Cam shafts must retain the same lift and duration as is standard for the make AND model.
  12. Engine Crankcase appearance
    1. Crank Case external appearance must be standard for the model.
  13. Bike Weight
    1. Minimum weight of all 400’s will be 150kg with the fuel tank off.
  14. Compression
    1. Compression must be standard for the model.
  15. Bore Size
    1. Bore size must be standard for the model.