Cinturato SmarTUBE X spo-default Up to 402 spikes made

Up to 402 spikes made of aluminum and tungsten carbide cores

This can be adjusted by adding or removing grease upon disassembly

Contoured surface for improved comfort on longer rides

Cut Out No Rail Material Steel Saddle Cover Material Leather Saddle Dimensions 275 x 175mm Saddle Weight 520g

tailoring the learning experience to your specific components

Cinturato SmarTUBE X spo-default Up to 402 spikes made70% weight savings compared to conventional tubes 50% smaller than conventional tubes 3x thicker than standard SmarTUBES Not for use with rim brakes Not designed to be repaired Constructed of Thermoplastic Polyurethane Weighs just 150 grams Attributes Shaft Type Non threaded Valve Presta Valve Length 42mm Wheel Diameter 700C