Hiro Koiso’s 2006 Harley FXD

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When Hiro Koiso Racing returned to the Bonneville Salt Flats this year for the annual Bonneville Motorcycle Speed Trials AMA Land Speed Grand Championship, you could argue they really didn’t have anything to prove. Hiro had already set the fastest open bike record on the salt at 227.236 mph back in 2017 (also at the BMST) on his JIMS-sponsored and -modified 2006 Harley-Davidson FXD-I-based machine. Pretty impressive stuff, no?

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Hiro Koiso’s 2006 Harley FXD

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