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Brunner controlled his shifting and braking with Ultegra R8070 dual-control levers. Eric Brunner's 2019 U23 National Championships Blue Norcross Team Edition. © A. Yee / Cyclocross Magazine

Brunner controlled his shifting and braking with Ultegra R8070 dual-control levers. Eric Brunner’s 2019 U23 National Championships Blue Norcross Team Edition. © A. Yee / Cyclocross Magazine