8. Opposed Four/Six


Honda pretty much owns this engine configuration. The flat-Four/flat-Six has powered every Gold Wing model since 1975, as well as a few others: F6B, Rune, Valkyrie. Besides Honda, a few OEMs have produced opposed-Fours including Wooler and Zundapp. Brough Superior produced a crazy-cool opposed-Four (pictured) where the cylinders were stacked vertical, instead of horizontal.

  • 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