From the V-8-powered Boss Hoss to the Sears Allstate “Twingle” (split-single), motorcycle engines have enjoyed a quizzical variety of configurations. In a future Top 10 we’ll countdown the most bizarre motorcycle engines, but for this list let us examine the engines that have come to dominate motorcycle power production.

  • Doug Erickson

    No mention of Aprilia in the V4 section? FOR SHAME, friends.

  • GB

    I think the best is the Ducati L twin

  • oldrepo56

    Airel square 4

  • oldrepo56

    Hercules Wankel powered Bike