What qualifies as “extreme” when we talk motorcycle design? Is it the use of exotic materials? The fitment of the latest gadgets to turn it from one motorcycle into something entirely different? Or is it just a design so perfectly executed that it makes the other models pale in comparison?
Admittedly, the term is indeed subjective, yet it doesn’t make it any less valuable. Radical design and performance have long gone hand-in-hand with motorcycle building, be it from Honda’s special HRC (Honda Racing Corporation) wing to a builder working in subzero temperatures in Russia.
A few years back, we looked at a dozen bikes that blew us away, and we thought it was time to go for another round. With that in mind, here are another 15 examples that we consider among the most extreme motorcycles on the planet—each a game changer, a leader in its field or just something so outrageous that it qualifies by default. You might want to wear a helmet.