Nimbus 24 Inch Mountain Unicycle with ISIS Hub - Nimbus 24" Mountain Unicycle Saddle: Nimbus (black) with front lift handle Frame: Nimbus II MUni 24" (black) steel with 42mm machined maincap bearing housings, with magura brake mounts Tire: Duro wildlife leopard 24" x 3.0" Crank arms: Nimbus Venture2 (black) 150mm, ISIS splined, aluminum -