The Kawasaki Ninja 400 opens the list as a beginner’s dream that quickly becomes yesterday’s news—its power and agility push new riders to outgrow it in months, flooding the used market and crashing resale value. And that’s just the beginning; from Ducati’s entry-level Monster to the BMW GS that looks ready for Everest but struggles on the freeway, this lineup reveals bikes that lure riders in—only to leave them disappointed. Let’s watch the video to see which models made the cut...