Conquer the penultimate hurdle of the series at SA Grand Slam #4 Strathalbyn, a premier open-road endurance cycling challenge located on the historic edges of the Fleurieu Peninsula. Moving the event village to the heritage town of Strathalbyn, this fourth instalment acts as the critical gateway to the final double-century milestone. Cyclists are presented with two formidable, entirely paved route profiles: a demanding 75km loop or a rigorous 150km distance that pushes into the deep valleys and ridges of the eastern Adelaide Hills.

As the second-to-last round of this progressive annual series, this ride carries an elevated sense of anticipation. The participant community utilises this event to validate their training blocks and ensure their nutrition and pacing strategies are locked in for the ultimate grand finale. Because it is a non-competitive endurance ride rather than a timed race, the focus stays squarely on smooth bunch mechanics, personal goals, and managing the physical toll of sustained time in the saddle.

The routes are characterised by significant terrain variation, steering riders away from the flats and into long climbs, false flats, and exposed, crosswind-prone sectors through areas like Macclesfield and Ashbourne. The loops test deep endurance reserves, making group shelter and a disciplined cadence essential for everyone on course. Bicycle SA guarantees a premium standard of participant support throughout the day, with well-signposted intersections, roaming sag wagons, and strategic nutrition hubs to keep legs turning smoothly toward the finish.