In the world of custom motorcycles, few things are as satisfying as a well-executed bobber built on a budget. This 1981 Yamaha XS650, affectionately dubbed “The Mighty Mongrel,” is a testament to creativity, perseverance, and the raw appeal of a machine pieced together with whatever works.
From Basket Case to Badass
What started five years ago as a “running basket” that someone had unsuccessfully attempted to convert into a sport bike has since been reborn as a no-nonsense bobber. The builder’s description says it all: “It’s nickname is the Mighty Mongrel due to the wide variety of parts used to get ‘er going.” And that’s no exaggeration—this bike is a Frankenstein of function, featuring bicycle fork blades repurposed as fender struts and an exercycle seat that somehow fits the bike’s rugged character perfectly.
Despite its cobbled-together nature, the XS650 fires up reliably—“one or two kicks… not bad for a 28-year-old basket case.” That kind of dependability is a badge of honor for any vintage build, especially one assembled for just around $1,000.
Aesthetic Touches with Attitude
The bike’s standout feature is the white star painted on the gas tank, giving it a rebellious, almost military-inspired flair. The minimalist approach extends to the rest of the build, with chopped fenders, a stripped-down frame, and a stance that screams old-school cool. The mismatched parts don’t detract from the bike’s charm—they enhance it, proving that a true custom doesn’t need a fat wallet, just vision and determination.
What’s Next for the Mongrel?
Even with its current form turning heads, the builder isn’t done yet. “Next step? Well, thinking ‘bout extending the swingarm…” Whether that means a longer, more aggressive drag-style look or simply tweaking the geometry for better handling, one thing’s for sure—this XS650 will continue evolving.
For now, The Mighty Mongrel stands as proof that the best builds aren’t always the cleanest or most expensive. Sometimes, they’re the ones that refuse to quit, built by riders who see potential where others see scrap. And that’s what the XS650 community is all about.
Got a Yamaha XS650 build you’re proud of? Send us your photos and story—we’d love to feature it next!
