Stable performance of the drivetrain on trails, gravel paths, and city streets. The compact design protects the rear derailleur from obstacles in a variety of situations. Total capacity: 48D. Maximum large sprocket: 45D (2x11 speeds). Designed and tested to provide lasting performance for electric biking. Developed for electric bicycles. Discover new ways to enjoy rides and daily commutes with a flat handlebar, thanks to the smooth gear shifts and pedaling action that this reliable rear derailleur for 2x11-speed systems offers. The compact design and chain stabilization system give cyclists the confidence to tackle hillier routes. Additionally, electric bike users benefit from a reliable and durable performance due to the special construction.