Best Choice Products&reg; Unicycle 20" Silver Chrome Unicycles Wheel Cycling Outdoor Sports Fitness New 20" wheel (20" x 1.75" Tire) Crank arms: WHEEL TOP Crank, International Quality Frame: Excellent Manganese Steel, Standard Frame of Unicycle Pedal: YONG HUA Pedals with Chromoly Spindles, International Quality Bearing: Heavy Manganese Steel Mute Bearing