24" Chrome Unicycle 1.75 Skidproof Tire w/ Stand Cycling Exercise Mountain Wheel 24" wheel (24" x 1.75" Tire) Frame: Excellent Manganese Steel, Standard Frame of Unicycle Crank arms: WHEEL TOP Crank, International Quality Outer Tire: Excelletn Skid Proof Mountain Tire Bearing: Heavy Manganese Steel Mute Bearing