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Stephens stored his food in a Dark Speed Works Speedbox 480 top tube bag and taped an extra tube below the top tube. Mat Stephens' 2019 DK200 Factor Vista Gravel Bike. © Z. Schuster / Cyclocross Magazine

Stephens stored his food in a Dark Speed Works Speedbox 480 top tube bag and taped an extra tube below the top tube. Mat Stephens’ 2019 DK200 Factor Vista Gravel Bike. © Z. Schuster / Cyclocross Magazine