Sport G4 is our original fitness tool with versatile components to let you choose any route from city streets to gravel paths. Ride posture, frame and wheel sizes are true to first Kickbikes from 1994. World's best ergonomics have stood the test of time but components have evolved over the years. Tires, slick at the center - knobby at the edges, are good from asphalt to forest roads. Adjustable handlebar position lets you tune the muscles trained: low and forward to make front of the thighs and back work more, high to give rear thighs more training. Calfs, buttocks and abs get worked both ways.
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