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The Shimano ST-R685 dual control levers remain in place, although the shift unit is not connected to anything. Jake Wells' 2018 Nationals-Winning Singlespeed Scott Addict CX. © D. Mable / Cyclocross Magazine

The Shimano ST-R685 dual control levers were left in place, although the shift unit is not connected to anything. Jake Wells’ 2018 Nationals-Winning Singlespeed Scott Addict CX. © D. Mable / Cyclocross Magazine