BONTRAGER SELF-SEALING 26x1.75-2.125 SCHRADER VALVE TUBES trek kids E-TUBE transmits interactive signals and

E-TUBE transmits interactive signals and power supply to each parts by “Plug & play” connection

3D forged aluminium

such as: TrainerRoad

Intelligent operation standby time: 100 hrs

Aggressive DH riding SPD pedals

BONTRAGER SELF-SEALING 26x1.75-2.125 SCHRADER VALVE TUBES trek kids E-TUBE transmits interactive signals andDurable self sealing tubes to prevent punctures. Self sealing to keep you rolling Protect yourself from flats with these specially designed Self Sealing tubes that instantly seal small hole punctures. Premium quality butyl rubber tubes feature a 0. 9mm wall thickness for the perfect balance of weight savings and durability. Features Bontrager Self Sealing Presta Valve Bicycle Tube 0. 9mm wall thickness The specifically engineered formula instantly