Schwalbe Energizer Plus outer tire The Energizer Plus is made specifically for electric bikes. The new Energizer Plus has an ultra-modern, dynamic touring tread with a smooth center and highly diamondized sidewalls. As a result, it rolls lightly on the street and has good grip even on unpaved roads. The Addix E-compound, specially made for E-use, for maximum durability, low rolling resistance and extraordinary grip, even at high speed. Reliable puncture protection in everyday use is guaranteed by the proven, 3 mm thick GreenGuard puncture protection belt. Specifications: Inch size: 28 x 1.40 ETRTO size: 37-622 French size: 700 x 35C Type of bicycle: electric bicycle (E-50) Type of tire: wire tire Anti-leak: yes Reflection: yes Color: black Material: rubber Weight: 730 grams Tire pressure: 4.00 - 6.00 Bar (55 - 85 PSI) Design: GreenGuard Rubber compound: Addix-E