Knox, De Groot fired up for Ashburton Investments National MTB Series Finale: The elite men lining up on the start line at the Ashburton Investments National MTB Series Rooiberg in 2015 Photo: ZC Marketing Consulting South African marathon champions, Max Knox and Robyn de Groot are fired up ahead of Saturday’s seventh and final round of the 2016 Ashburton Investments National … [Read more...] about Knox, De Groot fired up for Ashburton Investments National MTB Series Finale