Isle of Man

                    

              YouthTrials Club Ltd

 

TSR1 ELIGIBILITY/LICENCING  

All riders and passengers must hold a current ACU Trials Registration/Membership card or a SACU 

licence. Any rider or passenger from another FMN MUST produce a licence issued by their FMN 

together with start permission and proof of personal accident Insurance. 

Where the Trial includes the use of public highways, then this will be stated in the Supplementary 

Regulations. If public highways are used then it is the sole responsibility of the rider to ensure that 

their machine is roadworthy and that they and their machine comply with all legal requirements. 

RIDERS AGE 

a) Adult riders: A rider must be at least 16 years of age to participate as an Adult. Sidecar passengers 

under 16 years of age, but subject to a minimum age of 14, may be allowed to compete in Adult 

events subject to the discretion of the Trials and Enduro Committee. 

b) Youth Riders : 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. After their 16th 

birthday a rider may compete as an Adult or as an A Class Youth until the end of the calendar year that they 

reach 17yrs and may alternate (on an event to event basis) between Youth and Adult classes subject to 

the following: 

• whilst riding in a Youth Class the rider is restricted to machines of a maximum capacity of 125cc 

• whilst riding as an Adult, capacity restrictions do not apply. 

Any rider who rides as an Adult in the Adult British Solo Trials Championship relinquishes the 

possibility to revert to Youth in the future. 

Class E - Minimum age – 4 years at the date of the 

competition and born after 01.01.10 

 

Class D - born between 01.01.06 and 31.12.09 

Class C - born between 01.01.2003 and 31.12.05 

Class B - born between 01.01.00 and 31.12.2002 

Class A - born between 01.01.98 and 31.12.99 

ENGINE CAPACITY CLASSES: The maximum engine capacity permitted for machines used in the age 

groups set out in this Regulation are as follows: 

CLASS A 125cc Mono or 250cc Twinshock and Electric up to 10 BHP measured at the rear wheel 

CLASS B 125cc Mono or 250cc Twinshock and Electric up to 10 BHP measured at the rear wheel 

CLASS C Standard Wheel 80cc & Electric up to 7 BHP measured at the rear wheel 

CLASS C Medium Wheel 80cc or 50cc & Electric up to 7 BHP measured at the rear wheel 

CLASS D Medium Wheel 80cc & Electric up to 7 BHP measured at the rear wheel – 

CLASS D Small Wheel 50cc Mono and 80cc Twinshock and electric up to 2 BHP/ measured at the rear wheel  

 

CLASS E* Small Wheel Electric powered machines up to 2BHP measured at the rear wheel 

The C and D Classes may be split by wheel size; C Class - Standard Wheel and Medium Wheel, D Class - Medium Wheel and Small Wheel. 

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 

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

+3cc. NB. Any changes to the age groups and/or capacity classes will have at least 12 months notice 

and be effective from January of any year. 

Criteria for riders wishing to ride in any higher class: 

• Events below National status – a rider may compete in any class higher than that of his/ 

her age group at the discretion of the organizers. However, they MUST ride the capacity 

applicable to their age. 

• National status competitions – a rider may at the discretion of the Trials and Enduro 

Committee be permitted to ride in the higher class. Written application supported by written 

approval from the riders Centre must support such a request. 

Criteria for riders wishing to ride in any lower class: 

• A rider may enter any event in a class below that of his/her age group on a “no award, no 

points” basis. 

The rider must always comply with the maximum capacity class for their actual age. 

NB . See also TSR 37 TIME AND OBSERVATION RULES FOR YOUTH TRIALS 

YOUTH RIDERS IN PRE 65 EVENTS 

A & B class youth riders may, in events below National status, ride “classic machines” of up to 250cc 

in events specifi cally designed for that type of machine, held entirely off road. “Classic machines” are 

in this instance defined as machines with twin rear shock absorbers and drum brakes and which were 

built with this type of suspension as original equipment. 

 

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