Knobby Knife invention extends life of dirt bike tires (Video)

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Written by WBIR

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Here in East Tennessee dirt bike riding can be a lot of fun except for the ongoing need to replace your tires.

An entrepreneur in Soddy Daisy has a vision to change that.

"No matter how much horse power you've got if you don't have traction you're not moving and so it's all about moving. Dirt bikers are looking to put the power to the ground and ultimately win," dirt biker and inventor Mark Evans explained.

The key to moving on a dirt bike is tires with grip, with square knobs.

But Mark Evans said, there's a challenge. READ ON 

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