Youth classes

[dmc2028372]

My boy is 7.5 years old. He is a very tall lad for his age and is now too big for his oset. I'd like to get him onto a petrol bike, preferably a beta 80. Only problem is I can't find a medium wheeled bike for love nor money second hand. 

If I was to buy him a big wheel variant would he be eligible to compete with it in an ACU event? And if so what class would he be in? 

Im struggling to find any relevant info!!!

[gasserguy]

For 2017: CLARIFICATION OF YOUTH CLASSES  2017 (See ACU Handbook TSR1 for details) Youth Age Groups  A Class born between 01.01.00 and 31.12.01 B Class born between 01.01.02 and 31.12.04 C Class born between 01.01.05 and 31.12.07 D Class born between 01.01.08 and 31.12.11 E Class: minimum age 4 years at the date of competition and born after 01.01.12 ENGINE CAPACITY CLASSES: The maximum engine capacity and wheel size permitted for machines used in the age groups set out in this Regulation are as follows: A Class 125cc Mono or 250cc Twinshock, and Electric up to 10 bhp measured at the rear wheel B Class 125cc Mono or 250cc Twinshock, and Electric up to 10 bhp measured at the rear wheel C Class Standard Wheel 80cc, and Electric up to 7 bhp measured at the rear wheel D Class Medium wheel 80cc, and Electric up to 7 bhp measured at the rear wheel E Class Small wheel Electric powered machines up to 2 bhp measured at the rear wheel C & D class may be split by wheel size: C class: standard and medium D class: medium and small 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 engined 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.                                  Engine Sizes Rebores are permitted subject to the resulting engine capacity not exceeding a tolerance of +3cc