By Martyn Herman RIO DE JANEIRO, Aug 10 (Reuters) - Powering around the banked wooden boards of a Olympic velodrome at 60kph, dangerously close to the bike in front, takes guts. It also requires trust in your team mates, which is why New Zealand's anchor man Eddie Dawkins believes the Kiwi trio will take some stopping in Thursday's team sprint -- the first medal to be decided in the track cycling programme. World champions in 2016 and 2014 Dawkins, Ethan Mitchell and Sam Webster have yet to medal at the Olympics, finishing fifth in London four years ago, but are hopeful of putting that right. More...