Richie McCaw is used to carrying the weight of a nation on his shoulders, so a mountain bike is likely light in comparison.
The former All Black captain was among about 100 multisport athletes who took part in a 43km race around Lake Wanaka yesterday -- an event taking in running, biking, kayaking and abseiling.
McCaw completed the initial mountain bike stage as part of his training for the GodZone Adventure Race, to be held in Tasman in April.
The first day of a two-day event saw the elite field led by Daniel Jones of Whakatane and Alex Hunt of Tasman.
Yesterday's stages, competed by both amateur and professional athletes, included a 43km/1200m elevation mountain bike ride through Minaret Station and a 9km 490m elevation off-road run over Rocky Mountain in which there was an abseil section.