Bike SA Grand Slam Challenge Series 2025 - #3 Williamstown

Official start time for each ride is 8am (6.30am for Grand Slam #5). There will be a rider information & safety briefing 15 mins prior to the start.

At the start location/registration desk collect your Rider ID which needs to be attached to your shirt or bike. This will give you to access the refreshment stops. Hand back at the finish so we know that you have finished your ride. Registration opens from 7am(or from 5.45am for GS#5).

No problems! You can choose to ride both loops or just one depending on how you are feeling, etc. The ride is the same price for 1 loop or 2. No need to let us know beforehand. Please advise us when you register on the day what distance you wish to ride/have ridden

The start locations in each town will be signposted as you drive in. Plenty of parking is usually available. Just allow yourself time to park/gear up and pre-register by 7.45am for the Rider Briefing (or 6.15am for GS#5)

For Mini Slam riders – If riding Loop 1 only you will start at 8am with Grand Slam riders. However, if you prefer a later start, you can select to skip Loop 1 and ride Loop 2 only with a later start time of 10.00am (no later than 10.30am), should you wish to have a sleep in!

Check out the weather forecast or email updates from Bike SA – as we are riding in the Adelaide Hills the weather can change quickly. Arm warmers and a light rain jacket are great – layering is always useful as the temperature does increase/decrease on the day!