![Brunner ran a double with an Ultegra R8000 crankset that held 46/36t cyclocross chain rings. Eric Brunner's 2019 U23 National Championships Blue Norcross Team Edition. © A. Yee / Cyclocross Magazine](https://www.cxmagazine.com/wp-content/uploads/2020/01/2019-nationals-eric-brunner-blue-u23-men-img_4762-cxmagazine-ay_1.jpg)
Brunner ran a double with an Ultegra R8000 crankset that held 46/36t cyclocross chain rings. Eric Brunner’s 2019 U23 National Championships Blue Norcross Team Edition. © A. Yee / Cyclocross Magazine
Brunner ran a double with an Ultegra R8000 crankset that held 46/36t cyclocross chain rings. Eric Brunner’s 2019 U23 National Championships Blue Norcross Team Edition. © A. Yee / Cyclocross Magazine