24hrtrial centenary logo 2



The 24 Hour Trial is a motorcycle reliability trial held in South Australia since 1924. Riders must comply with the rules and regulations laid down by the governing bodies of Motorcycling Australia, Motorcycling South Australia, Specific Rules written for the running of Reliability Trials in South Australia and the Supplementary Rules of The 24 Hour Trial Organising Committee.


Rather like rallying, where drivers and their vehicles, riders and their motorcycles must complete the designated course within a set time limit without recourse to outside help along the way.

The machine must remain roadworthy throughout the event and a competitor can be penalised or excluded for any defects along the way, or at the finish. As the name “Reliability Trial” implies, once started, competitors are to rely on their machine preparation beforehand and the reliability of the machine during the event, as outside assistance from other competitors or spectators is forbidden. Riders are not allowed to take on spare parts or clothing during the event (other than those deemed as safety items in the rules) and refuelling is only allowed at the 3 official fuel stops set around the course, roughly dividing it into thirds. At these fuel stops only fuel, water oil and air, can be taken on, unlike most other motorcycle sports, looking after your machine and finishing becomes the primary objective and winning is the bonus.

Each rider receives their riding number by way of a random draw, Expert Solo and Expert Sidecar are separated from the rest of the open Clubman Classes for safety. Sidecars are first to tackle the 200km plus course starting at 11.01am from the Main Control facility. Each rider is released at one minute intervals, and ride to a pre determined schedule based on their starting number. There is a time limit of 60 minutes before a competitor is classified to be running over their scheduled arrival time with exclusion being the result. The rider with the least amount of total accumulated points lost over the 24 hour period, including any penalties imposed, becomes the winner.

Sean Throup

Camping areas shown below are for competitors only


There are 12 competitive sections on the 200km plus course (where the racing is done) these are linked with easier transport stages (transport stages can also become difficult to negotiate depending on the weather conditions) where competitors must travel in order to race in the competitive sections. Competitors travel over the course 4 times and race in 48 competitive stages over the 24 hour period. They can experience a diversity of natural terrain and weather conditions, which can include mud, deep water, bulldust, rocky creek beds and hills , clay tracks, scrubland & sand, in sunshine, rain, fog or frost. Temperatures can fall as low as -5° in the early hours of the morning and into the mid to high teens during the day or vary 5° or 6° from one end of the course to the other.


The course runs through private farm land which has been generously provided by the local farmers, many of which are in crop this time of the year. Our priority is to look after the land and land owners, afterwards repairing any damage resulting from the bikes running on the course.

Unfortunately damage from irresponsible spectators to these farm properties has been an on going problem each year, leaving us the organisers the clean up bill, and the loss of land to run this unique event on.

With permission of some land owners we provide Designated Spectator Areas for the public to access, please be responsible and use the spectator areas provided for future continuation of this event.

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RUBBISH must be taken when you leave.

CAMPING is not allowed unless authorised.

DOGS are NOT permitted as well as other animals. Guide dogs excepted.

In the interest of safety to the public and competitors, access roads to competitive stages or controls for spectators, may be restricted if they are deemed to be unsafe for travel due to weather conditions.


Motor racing is DANGEROUS, and spectators attending this track do so entirely at their own risk. It is a condition of admission that all persons having a connection with the promotion, and/or organisation, and/or conduct of the meeting, including the owners of the land and the riders and owners of vehicles and passengers in the vehicles, are absolved from all liability arising out of the accidents causing damage or personal injury to spectators or ticket holders, except where due care and skills has not been exercised.


Kapunda Harness Racing Complex, Kapunda, South Australia