Photo of the Day: Summer in Southern California

IMGL9800spenceoth1000 That’s our frequent test rider Spencer Rathkamp racing in the Over the Hump series at Lake Castaic, California, last summer. Spencer is heading to Mammoth in another two weeks to battle for the national championship in Cat. 1 cross-country. Afterwards, we expect he’ll be turning pro. Photo: JK/Mountain Bike Action

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