Saturday Classes

         SATURDAY (all races have 2 motos)

              THE ROBIN HANNAH CUP

       Adult Minis, 100cc Challenge and all 

           long-travel brands including CZ

   (NOTE: anything longer than 7 inches front

    and 4 inches rear is considered long-travel)

Adult Minis: 

(# MUST BE 18 OR OLDER. ALL SKILL LEVELS)

Adult mini Stocker 1: 

XR 100, TTR125, DRZ125, KLX 125

Adult Mini Stocker 2: 

KLX 140 and CRF150f 

Adult Mini Mods: 2 strokes up to 85cc, 

all modified 4 strokes up to 150cc, CRF150r 

All minis must have 19/16 wheels. Stocker class is limited to springs, exhaust, airbox and jetting changes, no internal engine modifications (cams, porting, rods , larger valves, etc)

230cc or under 4 stroke air-cooled:

ANY 4 stroke up to 230cc's, including XR200's, no modification limits

NorCal Vintage 100cc Challenge 

         (to be run with 125’s)  

This includes any eligible (21” front and 18/19” rear wheels) 100cc motorcycle up to 1983. Drum brakes are highly encouraged (but not required), unlimited suspension travel, linkage, non-linkage mono shock and twin shock. This is an air cooled only class. Four strokes are welcome, but only air cooled, with a maximum over bore to 150cc’s with 21” front and 18/19 rear” wheels

2 Classes: 

Class of 74 100cc Challenge: all bikes with 7/4 suspension up to 1974

Class of 83 100cc Challenge: all bikes from 1975 to 1983

Class of 78: 

Air-cooled with up to 9 inches of suspension travel, front and rear. These bikes have leading axle front forks and stop with drum brakes, front and rear. (Yamaha early mono shock is OK, but only up to 9” of suspension travel) Any bike from 1975-1978  

•  125 over 7/4 Novice
• 125 over 7/4 Int  
•  125 over 7/4 Exp  
•  250 over 7/4 Novice 
• 250 over 7/4 Int 
•  250 over 7/4 Exp
•  500 over 7/4 Novice
• 500 over 7/4 Int
•  500 over 7/4 Exp

Class  of 84:

 Air- or liquid-cooled with an unlimited amount of travel, front and rear. This includes linkage rear suspension and Single Disc Front Brake. Any bike from 1979-1984

• Class 84 125 Novice
• Class 84 125 Int 
• Class 84 125 Exp  
• Class 84 250 Novice
• Class 84 250 Int 
• Class 84 250 Exp  
• Class 84 500 Novice
• Class 84 500 Int
• Class 84 500 Exp

Pre-Modern up to 96:

Air or liquid-cooled with an unlimited amount of travel, front and rear disc brakes. This class applies the “Like Design” rule, if later bikes are effectively the same. No Aluminum Frames!

• Pre-Modern 125  Novice
• Pre-Modern 125 Int  
• Pre-Modern 125  Exp  
• Pre-Modern 250  Novice
• Pre-Modern 250 Int  
• Pre-Modern 250 Exp  
• Pre-Modern 500 Novice
• Pre-Modern 500 Int  
• Pre-Modern 500 Exp 

Modern Class

         (aluminum frames, 2 and/or 4 stroke)

• Modern Class Novice
• Modern Class Int
• Modern Class Exp

                            SUNDAY  

                 (all races have 2 motos

                       except Legends)

1st Moto of the Day: 

• LEGENDS (National level riders who raced prior to 1975, all engine sizes and bikes welcome)   
   

CZ Twinport:

• CZ Twinport Challenge: 250/360 race together   
• All skills; scored separately  
   

CZ Sidepiper Class of 70: 

                      250: all skills

                      360: all skills

                      2 gates, 2 classes

CZ Class of 74: Black and Red Frames

• CZ Class 74 125 Nov
• CZ Class 74 125 Int      
• CZ Class 74 125 Exp   
• CZ Class 74 250 Nov
• CZ Class 74 250 Int  
• CZ Class 74 250 Exp     
• CZ Class 74 500 Nov
• CZ Class 74 500 Int      
• CZ Class 74 500 Exp     
• CZ Class 74 Women     
• CZ Class 74 Over 50 Nov
• CZ Class 74 Over 50 Int  
• CZ Class 74 Over 50 Exp  
• CZ Class 74 Over 60 Nov
• CZ Class 74 Over 60 Int    
• CZ Class 74 Over 60  Exp     
• CZ Class 74 Over 70 Nov
• CZ Class 74 Over 70 Int
• CZ Class 74 Over 70 Exp  
  

                Falta Replicas 75-76:

                   75-76 Falta 250 Nov

                   75-76 Falta 250 Int

                   75-76 Falta 250 Exp   

                   75-76 Falta 500 Nov

                   75-76 Falta 500 Int    

                   75-76 Falta 500 Exp
       Faltas must be stock shock length with stock motors;  

                 longer travel bikes and 

     those with modified motors enter 

               the World Championships 

                             Builder's Class

                    Non-CZ Class of 69:

This is the Premier Motocross Class. These bikes started life as street bikes but were converted to off-road use. Triumph, Norton, Royal Enfield, BSA and other twins and single 4-strokes and pre-1969 2-strokes. 1920-1969

• NonCZ Class 69 250 Nov
• NonCZ Class 69 250 Int 
• NonCZ Class 69 250 Exp   
• NonCZ Class 69 500 Nov
• NonCZ Class 69 500 Int  
• NonCZ Class 69 500 Exp  
   

                           Non-CZ Class 74:

Air-cooled, reed valve or piston port; twin shocks with 7 inches of travel in the front and 4 inches of travel in the rear. These bikes are equipped with single leading drum brakes, front and rear. Any bike from 1970-1974, but this class also includes some newer machines like 1974.5

• Non CZ Class 74 125 

                             Nov

                  Non CZ Class 74 125 Int  

• Non CZ Class 74 125

                              Exp  

• Non CZ Class 74 250 

                              Nov

                   Non CZ Class 74 250 Int   

• Non CZ Class 74 250

                               Exp  

• Non CZ Class 74 500 

                               Nov

                   Non CZ Class 74 500 Int  

• Non CZ Class 74 500 

                               Exp  
 

                                 SUNDAY 

                     (all races have 2 motos)

        Would you like to compete
    for a CZ World Championship?

  The CZ World Championship Classes
                   are open to all riders
                          of any skill level,      
                        using vintage CZs            
                          with 7/4" travel
            except in the Builder's Class

CZ World Championship (WC) Classes:
                  CZ WC 125
                  CZ WC 250  
                  CZ WC 500   
                  CZ WC 500  OVER 50
                  CZ WC   Women
                  CZWC    Builder's Class:
                          Any CZ, any build, no limits!
_____________________________________________


                          EXAMPLES:
      You're an intermediate and have
                 a '74 Red Frame 250;
                            you enter
      CZ Class 74 Black and Red Frames
                                   250 Int

                         You're an Expert
               with a stock 76 Falta 360;
                               you enter
                        Falta 75-76 500 Exp


                You're an Intermediate
             but you think you can win
              a World Championship
               with your '73 radial head
                      Black Frame 250;
                              you enter
                            CZ WC 250


           You're an Expert and over 50
         with a tricked-out '83 514 380;
                                you enter
                CZ WC Builder's Class