Dirty Weekend

Dirty Weekend – POSTPONED

Due to COVID-19 and in accordance with our Response Policy, we regret to advise that we have now postponed Dirty Weekend 2020. We will make further announcements regarding a new date once the current situation has eased.

South Australia’s only 24 hour MTB challenge

Prospect Hill MTB trails, Kuitpo Forest | 2-3 May 2020

Celebrating 20 years of MTB madness and this year featuring the

2020 MTBA Solo 24hr National Championships


Our Policy Surrounding COVID-19

With 6hr, 12hr, 24hr and 3hr E-MTB options, this is an epic adventure and above all a hell of a lot of fun along South Australia’s finest MTB trails.

Due to the recent bushfires at Cudlee / Fox Creek, this year we get to enjoy the Prospect Hill MTB trails in Kuitpo Forest Reserve. Situated approximately 55km SE of Adelaide in South Australia’s beautiful  Adelaide Hills and Fleurieu region, the Prospect Hill trail network sits predominantly within mature pine plantation forest and offers the opportunity to experience more of South Australia’s extensive network of awesome MTB trails, all within easy access of Adelaide.

When, Where & What

  • 2-3 May 2020
  • Kuitpo Forest, SA (Venue change due to recent bushfires)
  • 24hr Challenge including Solo 24hr National Championships
    Starts 2pm Saturday
  • 12hr Challenge
    Starts – 2pm-8pm Saturday PLUS 8am-2pm Sunday
  • 6hr Challenge
    Starts – 8am Sunday
  • 3hr E-MTB Challenge
    3pm-6pm Saturday

24hr, 12hr & 6hr categories finish 2pm Sunday, presentations at 2.30pm
3hr E-MTB category finishes 6pm Saturday, presentations at 6.30pm

Entry Categories / Prices

Entry Category $ (per/Member*) $ (per/Non-Member*)
24hr Challenge
– Starts 2pm SATURDAY
SOLO $120 $135
$110 $125
Team of 4*
$100 $115
12hr Challenge
8am-2pm SUNDAY
SOLO $110 $125
$100 $115
Team of 4*
$90 $105
Youth Team of 4** $65 $80
6Hr Challenge
Starts – 8am SUNDAY
SOLO $80 $95
Youth Team of 4** $45 60
Dirty Espresso 3HR E-MTB Challenge
Starts 3pm Saturday
Solo $65 $80


^ Solo 24hr National Championship competitors must hold a current MTBA Race Membership or purchase a Race Day Licence.
^See Entry / Age categories in Solo 24hr National Championships tab below

* Riders in Duo or Team of 4 categories share the load, riding relay with only one team member on the track at any one time.

** 12hr and 6Hr Youth Team category for riders aged 14 – 17: A supervising adult must be in attendance at all times. (Riders aged 12 – 14 permitted only with suitable mountain biking experience and prior approval of Event Manager)

What's new in 2020

  • Dirty Weekend celebrates 20 years in 2020
  • Dirty Weekend hosts the MTBA Solo 24hr National Championships
  • Onsite camping available from 2pm Friday 1 May
  • The Dirty Espresso 3hr E-MTB Challenge returns
    Sat 2 May 3pm-6pm
  • The Schools Challenge Trophy returns
    for Youth Team of 4 riders – 12hr and 6hr
  • Plus fun activities for the kids
  • More details coming soon

Solo 24hr National Championships

For the first time, South Australia will host the Solo 24hr National Championships in conjunction with Dirty Weekend.

When registering for Dirty Weekend you can enter in any of the usual 24hr, 12hr, or 6hr Solo, Duo or Team 4 categories OR you can select to participate in the Solo 24hr National Championships  which will include the following Male and Female categories:
– Elite (23+ years)
– Under 23 (19-22 years)
– Expert (19-29 years)
– Masters 1 (30-34 years), Masters 2 (35-39 years), Masters 3 (40-44 years), Masters 4 (45-49 years),
– Masters 5 (50-54 years), Masters 6 (55-59 years), Masters 7 (60-64 years), Masters 8 (65-69 years),
– Single Speed (Open)

Those participating in any of the National Championship categories must hold a current MTBA Race Membership or purchase a Race Day Licence.


The Track

Whilst we’re disappointed that our usual venue at Cudlee / Fox Creek is still unavailable due to the impact of recent bushfires, we are excited to be able to showcase the Propect Hill MTB trails in the Bells Gully area of Kuitpo Forest.

The Prospect Hill trails are situated predominantly within mature plantation forest and consist of a mix of wide forest access tracks and fabulous single track loops within widely spaced radiata pine trees. With additional upgrades to the existing network planned for the Dirty Weekend you can expect a course distance of approximately 10 – 12km.

More details including track details will be posted in due course.

View the 2020 Dirty Weekend Prospect Hill location 

View Prospect Hill trails map

Dirty Espresso 3hr E-MTB Challenge

Short, sharp and intense like a good Espresso should be and as sweet as you like!!
For those who have joined the growing ranks of E-MTB riders we’ve got a new challenge for you to take on. You might be using some E-assistance but that’s what this challenge is all about.

There’s just a single OPEN SOLO category on offer to test your E-legs over 3 hours of power-assisted pedalling.

E-Bike Rules & Regulations

  • E-mountain bikes must comply with South Australian standard relevant to “Pedelec power assisted bicycles” i.e.maximum 250w power output using pedal-assist system only. View SA Compliance Details Here
  • Competitors are allowed to use ONE BATTERY ONLY for the event. It is not permitted to carry a spare battery or change batteries during the event.
  • Riders should ensure that their battery is fully charged before the start
  • Bikes with a separate throttle control are NOT permitted.
  • The manufacturers e-bike factory speed limiter must not be tampered with.
  • 25kph is the max speed the bike is allowed to travel assisted by battery/motor.
  • All sensors are not allowed to be re-positioned or changed from manufacturer’s original position.
  • Electronic settings relating to Wheel Circumference must not be tampered with.


Dirty Weekend Schools Challenge Trophy

The Dirty Weekend Schools Challenge Trophy returns in 2020.
Get a group of your school mates together and include your schools name when you register a Youth Team of 4 in either the 12hr or the 6hr event. Points will be awarded for participation and placings.
The school with the highest number of accumulated points at the conclusion of the event will be awarded the Dirty Weekend Schools Challenge Trophy.


We’re always after eager volunteers to assist at the event.
Please contact office@bikesa.asn.au if you’d like to volunteer at the Dirty Weekend in 2020


Seriously good fun!!!

John , 2018 Rider

It hurts so bad every year but it’s easy to want to do it all over again when the event is so well organised and run.

Tyson , 2018 Rider

I loved the flowy trails

Zoe (13) , 2018 Rider