Vintage Bike Gets Briggs And Stratton Power

eBay made the process of motorizing a bicycle popular, with cheap engines from China combined with a handful of parts to lace everything together. If your tastes are a little more vintage however, [Oliver]’s build might be more your speed.

Starting with a real Briggs and Stratton liberated from an old rotary tiller, this engine has legitimate vintage credentials. Looking resplendent in brown, it’s paired with a bike in a similar shade from yesteryear. Drive from the engine is transferred by belt to a jackshaft, which then sends power through a chain to the rear wheel. The belt tensioner serves as a rudimentary clutch, allowing the engine to be disconnected from the drivetrain when disengaged.

The retro components, combined with an appropriate color scheme, make this a wonderful cruiser that oozes style. While it’s probably not suited for downtown commuting due to its lack of a real clutch and noise, it would make a great ride for taking in some country roads on a sunny day. We’ve seen similarly styled e-bikes, too. Video after the break.

18 thoughts on “Vintage Bike Gets Briggs And Stratton Power

  1. There is nothing I hate more than a motorized bicycle (gas motor). One can hardly conceive of a better way to trash one of mankinds most clever inventions. Electric bikes are bad, these are far worse.

    1. NO!
      It’s a way to appreciate mankinds greatest (most clever) inventions: engines and electric motors. To get rid of the chores of pedaling yourself, to get rid of the limitation to muscle power.

  2. Here’s how we did it in 1946.

    The engine was a fairly large (100cc?) 4-stroke, and was pretty fast — maybe 50 mph, which is insane with only the rear coaster brake. Easy go, not so easy stop.

    My Schwinn bike came with a rudimentary spring front suspension, a front wheel brake, and heavier spokes (standard spokes tended to break because of the vibration).

    A little more $$ bought a genuine, large diameter straight exhaust, which gave a sound to die for. Mellow on acceleration, and a loud “rap” on deceleration.

    For yet more $$, you could get an ingenious and genuine 2-speed automatic transmission (!!!) with automatic clutch. Internally, it was a planetary gearbox with fly weights. When the revs got high enough, just roll the throttle back and it would shift up. Slow down, and it would drop back into 1st gear.

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