Pirelli Cinturato SmarTube X Tube - 700 x 40 - 50mm 60mm Presta Valve CheckoutSpec= 20x2.0 The boost offset optimizes this

The boost offset optimizes this spider for the M30 cranks with a 52mm chainline

}SRAM 16t Bosch Direct Mount 11/12-Speed X-Sync2 Eagle Chainring Black

by many chosen for its super elastic construction

And it’s been verified to work with Apple’s ultra-wideband signal

Steerer Type Tapered Color Slab Gray Lockout Switch Crown Brake Type Post Mount 200 Crown Race 40 Negative Spring Air Travel (mm) 160 Wheel Size 27

Pirelli Cinturato SmarTube X Tube - 700 x 40 - 50mm 60mm Presta Valve CheckoutSpec= 20x2.0 The boost offset optimizes this70% 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 TECH SPECS Tube Weight 151g Tube Width 40 50C Valve Presta Valve Length 42mm Wheel Diameter 700C Shaft Type Non threaded