STRADA MTB TEMPO LIBERO E URBAN DONNE BAMBINI E-SERIES Comfort / Trekking City / Commuting Compare bikes E-Series Men's view E-Series 1 Headshok Men E-Series 1 Headshok Men Alfine 8 E-Series Women's view E-Series 1 Headshok Step Through E-Series 1 Headshok Step Through Alfine 8 PURE. EFFICIENCY Efficient on the climbs... and everywhere else. “Pure Efficiency” is the heart of the Cannondale E-Series. Designed from the ground up, specifically for the performance-minded rider; a seamlessly integrated Bosch’s instinctive drive system, sportive geometry, disc brakes and a headshok fork deliver a perfect riding experience. Intuitive, powerful and easy, the E-Series features best-in-class torque, ultra-smooth power delivery, and exceptionally low weight.