For 6-9 Year old Riders

Automatic Quad up to 50cc 2 stroke/100cc 4 stroke. Performance modifications are allowed u to a max of 50cc 2stroke. No Engine modifications are allowed on the 100cc 4 stroke machines

Yamaha 90cc 4 Strokes will be scored in their own "bLU cRU" class

 

Number Boards: White background, Black Numbers

For 11-16 year old riders

Open Geared Class, Max 100cc 2 stroke Air cooled, / 150cc 4 stroke water cooled. Engines must not have exceeded 119cc 2 stroke/179cc 4 stroke. The 150cc Open class to compete in the 250cc Race Group. 

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Number Boards: White background, Black Numbers

For 15+ Year old riders

Entry Level riders and progressing Youth riders from 15 yrs old.

 

Any Female rider entered into this class will also score points in the overall ACU Ladies British class. 

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Number Boards: Green background. White numbers

For 35+  year old riders.

To compete in this class you must be 35+ years at the start of the season. ACU British Championship.

 

 

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Number Boards: Red background. White numbers

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For 15+  year old riders.

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To be eligible to enter, Youth Riders moving up from the Youth classes must have completed 1 Full round in another Nora Adult class. The Riders Lap time must be equivalent to lap times achieved in the Elite class of the same race across the whole round. (DNF's/DNS's do not count as completed races)

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Club riders of progressing ability. ACU British Championship. - run in the race group as Pro/Pro-Am 

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Number Boards: Red background. White numbers

For 8-13 Year old Riders.
Auto 100cc production quads, built by the manufacture. Engine must not have exceeded 100cc 2 stroke Auto / 150cc 4 stroke auto

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Number Boards: Blue background, White numbers

For 11-16 year old riders

Air Cooled production Quads. Performance modifications are allowed to the engine and Chassis, up to a max of 239cc 2 stroke/299cc 4 stroke. Frame and engine must be by the original manufacturer. ACU British Championship. 
 

Number Boards: Blue background, white numbers.

For 15+ year old riders.

Club riders of progressing ability.

 

(Clubman compete in the Inters and Ladies Race group)
 

Any Female rider entered into this class will also score points in the overall ACU Ladies British class. 

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Number Boards: White background. Black numbers

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For 35+  year old riders.

To compete in this class you must be 35+ years at the start of the season. Masters B compete within the Masters A race group and will score points for their own championship as well as the overall.

 

 

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Number Boards: Whtie background. Black numbers

For 15+  year old riders.

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To be eligible to enter, Youth Riders moving up from the Youth classes must have completed 1 Full round in another Nora Adult class. The Riders Lap time must be equivalent to lap times achieved in the Pro/Pro-am class of the same race across the whole round. (DNF's/DNS's do not count as completed races)

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Experienced riders at the highest level 

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Number Boards: White background. Black numbers
 

For 9-13 year old riders.

Open Geared class, max 100cc 2 stroke/150cc 4 stroke. Must not have exceeded 119cc 2 stroke/179cc 4 stroke

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Number Boards: Red background, White Numbers.

For 14-17 year old riders.

Open Class (Hybrids allowed), Engines must not exceed 239cc 2 stroke/ 299cc 4 stroke. ACU British Championship 

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Number Boards: Red background. White numbers

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For 15+ year old Female riders.

Club riders of progressing ability.

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(Ladies compete in the Inters and Clubman Race group)

Any Female rider entered into this class will also score points in the overall ACU Ladies British class. 

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Number Boards: Blue background. White numbers

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For 50+  year old riders.

Must be 50+ yrs at the start of the season scored within the Masters B Championship.  

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Number Boards: White background. Black numbers

For 15+  year old riders.

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To be eligible to enter, Youth Riders moving up from the Youth classes must have completed 1 Full round in another Nora Adult class. The Riders Lap time must be equivalent to lap times achieved in the Elite class of the same race across the whole round. (DNF's/DNS's do not count as completed races)

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Experienced riders at the highest level U21 British Championship end of year Trophy. British ACU Championship 

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Number Boards: Blue background. White numbers