bicycle

Untitled
By Bart
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It's all about using tools to fix your problems... but what if the tool becomes the fix itself?

pedal powered spit roast
By Unknown
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Five minutes worth of very light exercise has never been so rewarding.

~NSHA

Via: Instructables
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Instructables user dhouggy wanted to ride his bike indoors but didn't want to pay hundreds of dollars for a trainer or professionally-made roller. So with a couple 2x4s and some PVC pipe he was able to craft this working homemade model for just $50.

By Unknown
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Brilliant! It's a like a bike that's also a treadmill! Genius! ... Wait, they already invented those? They're called stationary bikes? %@*$@#(@!$!!!!!