MACHINE ELIGIBILTY

Pre 60

  • Pre 60 class is for any machine manufactured before 31st December 1960
  • Pre 60 machines must have Blue number plates with White numbers
  • No light weight hubs unless original Pre 60 equipment 
  • Replica frames are permitted
  • Pre 60 may use Methanol 
  • Machines must have a front fork travel maximum of 6.5 inches. Rear wheel spindle movement maximum of 4 inches 
  • External reservoir shocks are not permitted
  • Front fork stanchions must not exceed 35mm
  • Must have drum brakes

 

 

 Pre 68

  • Pre 68 class is for any machine manufactured before 31st December 1968
  • Pre 68 up to 350cc must have White number plates with Black numbers
  • Pre 68 over 350cc must have Black plates with White numbers
  • Pre 68 may use Methanol
  • Any carburettor, no flat slides
  • Machines must have  front fork travel maximum of 6.5 inches. Rear wheel spindle movement maximum of 4 inches 
  • Replica frames are permitted
  • External reservoir shocks are not permitted
  • Front fork stanchions must not exceed 35mm
  • Must have drum brakes

 

 

Pre 74

  • Pre 74 class will be for 1973 models or older
  • Pre 74 up to 300cc must have Green plates with White numbers
  • Pre 74 over 300cc must have Yellow plates with Black numbers
  • Any carburettor, no flat slides
  • External reservoir shocks are not permitted
  • Pre 74 Machines must have fork travel maximum of 7.5 inches. Rear wheel spindle movement maximum of 4 inches.
  • Front fork stanchions must not exceed 35mm
  • Replica frames are permitted
  • Methanol Fuel not permitted
  • Must have drum brakes

 

Pre 78

  • Pre 78 class will be for 1977 models or older.
  • Pre 78 must have White plates with Black numbers
  • Any carburettor may be used
  • Must have drum brakes
  • Replica frames are permitted
  • Front suspension may have a maximum travel of 10 inches measured on the stanchion. Conventional telescopic and leading axle forks must have a maximum  external diameter of 38mm
  • Rear wheel suspension movement is limited to 10 inches, measured at the axle at the rearmost of its chain adjustment slot.

 Pre 84

  • Pre 84 class is for any machine manufactured before 31st December 1984
  • Pre 84 up to 250cc must have Green plates with White numbers
  • Pre 84 over 250cc must have Green plates with Black numbers
  • Any carburettor may be used
  • Must have drum brakes
  • Up to 250cc Water cooled machines are permitted
  • Over 250cc must be Air cooled
  • Replica frames are permitted
  • Suspension unspecified
  • Front fork stanchions must not exceed 42mm
  • No upside down forks

 

 

Pre 89 125cc, 250cc, 500cc

  • Pre 89  class is for any machine manufactured before 31st December 1989
  • Pre 89 125cc  must have Black plates with White numbers
  • Pre 89 250cc must have Green plate with White numbers
  • Pre 89 500cc must have Yellow plates with Black numbers

General Eligibility

  • Machines presented for use at the event MUST be in race worthy condition 
  • All machines must be fitted with an engine cut-out button
  • All machines must be fitted with self-closing throttles
  • All machines must have clutch and front brake levers must be of the ball end type
  • All machines must have folding footrests

Eligibility complaints must be submitted in writing to the Committee.

updated 06/03/2025