Pirelli Cinturato SmarTube Tube - 700 x 33 - 45mm 60mm Presta Valve Chainring BCD-94 This chainring mount system allows

This chainring mount system allows riders to minimize weight maximize stiffness and accuracy and retain the ability to swap ring sizes

4) compression ferrules

"Hidden" chainring bolt threads into crank arm to enhance chainring stiffness

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without compromising the overall stability of the tyre thanks to a stiffer base compound

Pirelli Cinturato SmarTube Tube - 700 x 33 - 45mm 60mm Presta Valve Chainring BCD-94 This chainring mount system allowsPirelli Cinturato SmarTube Tube 700 x 33 45mm 60mm Presta Valve. Cinturato SmarTube is the cycling inner tube designed for gravel adventure and endurance. The tube provides all the benefits of the innovative TPU (Thermoplastic Polyurethane) and thanks to a specific formulation that delivers the best performances for those who are looking for superior puncture resistance with low weight and compact size. SmarTube is a one of a kind inner tube: reduced