The day 2 bike leg starts at Volcano with a (usually) cold and wet descent down towards Hilo. Athletes then ride south down towards the red road, one of the most scenic parts of the course. There is no feed zone along the whole red road section, as indicated on the map.
After negotiating the traffic lights of Hilo, riders go along the coast before turning inland toward Waimea. Then it’s a simple matter of climbing the Kohala mountains and ending with a terrifying 13 mile descent into Hawi.