This unique, exhilarating mountain bike (MTB) relay event was the largest MTB event in New Zealand last year with over 3,000 riders. Individuals, teams of two/three or four/five competed on an 8km, 30-minute circuit over 12 hours. Both grades ride the same circuit which has been specifically designed for the event to cater for riders of all ability levels.
http://www.daynightthriller.co.nz/