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KillaJoule is the world’s fastest electric motorcycle with a top speed of 270 mph (434 km/h) so far. Builder, owner, and rider is Eva Håkansson. The only purpose of this 19 ft. (5.6 meter), 400 HP, sleek motorcycle is to show that eco-friendly can be fast and enviable. You can read the entire story how… Continue reading WHAT IS KILLAJOULE?


I often say that KillaJoule is a “giant cordless drill with wheels”. What I refer to is of course that it is battery powered, but also that it is very simple at a conceptual level. Just like a cordless drill, it has a battery, motor, a throttle, and a bit of electronics in-between. And wheels.… Continue reading UNDER THE SKIN


I-just-set-a-new-world-record-selfie. 🙂 This is how happy I was after a 251.255 mph (404 km/h) run at the Bonneville Salt Flats with pure battery power at Bonneville Motorcycle Speed Trials on August 30, 2016. The final world record became 248.721 mph (400.278 km/h). That made it the world’s fastest electric motorcycle, the world’s fastest sidecar motorcycle,… Continue reading RECORDS & AWARDS


The weakest link in all wheel-driven speed record attempts is a surprising and obscure detail – tires!  Tires can be one of the main points of failure on all vehicles, but are specifically troublesome on extremely high speed, wheel-driven vehicles. Therefore, we are literally re-inventing the wheel for Green Envy!  The very fastest cars are… Continue reading RE-INVENTING THE WHEEL!


KillaJoule as “LEGO™” This KillaJoule model compatible with the popular LEGO™ toy system was designed by Urim Chae, one of my first year engineering students at the University of Auckland. The 562 students in my first year course “Principles of Engineering Design” (ENGGEN 115) were in Semester 1 2018 assigned to design an accessory compatible… Continue reading FAN ART