YOUTH AGE GROUPS
A Class ........... born between 01.01.2008 - 31.12.2009
B Class ........... born between 01.01.2010 - 31.12.2013
C Class ........... born between 01.01.2013 - 31.12.2015
D Class ........... born between 01.01.2016 - 31.12.2019
E Class ........... minimum age, 4 years

Note: A rider must be at least 4 years of age to participate on an electric powered machine and 6 years of age to participate in a trial using a combustion engine machine

CHECK CORRECT DATE OF BIRTH FOR CLASS (above) AND ENGINE CAPACITY (below)

ENGINE CAPACITY / WHEEL SIZE
The maximum engine capacity permitted for machines used in the Youth age groups are as
follows:
A Class ....... 125cc Mono up to 250cc Twinshock, and Electric up to 10bhp measured at the
rear wheel

B Class ....... 125cc Mono up to 250cc Twinshock, and Electric up to 10bhp measured at the
rear wheel

C Class ....... Standard Wheel 80cc, and Electric up to 7bhp measured at the rear wheel

C Class ....... Medium Wheel 80cc, and Electric up to 7bhp measured at the rear wheel

D Class ....... Medium Wheel 80cc, and Electric up to 7bhp measured at the rear wheel

D Class ....... Small Wheel 80cc, and Electric up to 7bhp measured at the rear wheel

E Class* ...... Small Wheel Electric powered machines up to 2bhp measured at the rear wheel

(*Organisers have the option of splitting the E class by wheel size.)

Wheel sizes
Standard Wheel: 21" Front - 18" Rear

Medium Wheel: 19" Front - 17" Rear

Small Wheel: 16" Front - 14" Rear

The above is based on the wheels of combustion engine machines using motorcycle tyres. If other wheels are used as on current Electric powered machines then the outside diameter (total circumference) of the tyre must not exceed that of the corresponding tyre size.

Standard rebores are permitted subject to the resulting engine capacity not exceeding a
tolerance of +3cc

Please Note :
No Youths should be left unsupervised at any of our Trials,
a responsible adult must sign on and be in attendance at all times.