Pirelli P Zero SmarTube Tube - 700 x 23 - 32mm 42mm Presta Valve Pad Shape Number-46 Changing inner chainring only

Changing inner chainring only

Optimized for use with KMC e9 X9 and X9 SL chains Range 11-36 Cogs 11-13-15-18-21-24-28-32-36 Cassette Body Type Shimano HG Drivetrain Speeds 9 Color Black Defined Color Black

Coil spring is sold separately

Model Shimano Asym Ring Type Outer Speed 10/11/12sp Mount 4x110mm Teeth 50 Oval/Round Round Color Black Size 50T

Pirelli P Zero SmarTube Tube - 700 x 23 - 32mm 42mm Presta Valve Pad Shape Number-46 Changing inner chainring onlyP Zero SmarTube is the most advanced inner tube in the range. It was designed to match the need for lightness and handling of professional World Tour riders and its first application was inside the P Zero Race Tube SL. Designed with TPU (Thermoplastic Polyurethane) an advanced plastic material characterized by elasticity and mechanical strength. The result is an inner tube that can be up to 70% lighter up to 50% more compact and as resistant against