The Grand Slam Challenge is a series of recreational rides catering to cyclists of differing abilities looking to share the experience with hundreds of like-minded riders.
Between February and October there are five Grand Slam Challenge rides throughout the Adelaide Hills, Barossa Valley and Fleurieu Peninsula as part of the Grand Slam Challenge Series. Participants can ride in one, two, three, four or all five of the rides.
Each ride combines two different loops of between 40km and 100km, all starting an
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