62 mph down the Pali Highway between the tunnels and Castle junction on a rare day with strong Kona winds. Usually can't get above 40 mph because of the headwinds. Car behind me almost lost it on the hairpin trying to keep up with me ... cars never think bicycles are going that fast. Did this on my Alex Moulton Speed. This was right after they had resurfaced - sure wouldn't try this with the condition the road is in now!