Gusseted Flat Top high tensile steel frame Lightweight anodized alloy wheels Rugged ISIS spindle sealed bearing hub Custom unicycle saddle with heavy duty scuff guards Fast-rolling multi conditions tire A sharp new flat-top frame design with top bar foot placement traction and reinforcing gussets guarantees stiffness and control in any condition or maneuver. We've also added a bomb-proof ISIS spindle hub and alloy crank arms to ensure maximum stiffness and impact resistance. Large platform pedals and a custom saddle with integrated grab rails and scuff guards help you maintain your composure no matter how extreme you get. Available in a 20" and 24" wheel for different rider heights and terrain demands.