The Shark Wheel has been scientifically proven in University and real-world testing to outperform the circular wheel in nearly every category. Significant advantages can be found in friction in motion, longevity, rebound, abrasion resistance, and off-road performance. Find out why multiple Fortune 500 companies use Shark Wheels and why Shark Wheel is a 3-time government grant recipient. The secret is how the Shark Wheel mirrors Nature. Everything in Nature alternates. The way fish and sharks swim, the way radio waves move, the helical twist of DNA, the way planets move around the Sun and even how humans walk with an alternating gait defines a sine wave.