- Robust Design: Reinforced structure with wide links, durable sliding plate, solid pulleys, and high-durability aluminum plate for extreme reliability on the toughest trails. 
- RD Protection Function – Automatic Impact Recovery: The derailleur automatically returns to its original position after an impact, improving durability and shifting consistency. 
- SHIMANO SHADOW ES technology: Evolution of the renowned SHADOW RD+, with a lower profile and greater robustness, for perfect chain stabilization even in extreme conditions. 
- Precise and crisp wireless shifting: Ultra-fast and accurate transmission, with a 500% gear range, ideal for every type of trail without compromise. 
- Protected and integrated battery: Positioned inside a closed space, it doesn't move even on the roughest terrain, yet remains easily removable for charging. 
- Covered pulleys and cage: Optimized design to prevent debris ingress, ensuring long durability and consistently smooth operation. 
- Quick action: Instant shifting activated by a fully adjustable, customizable SHIMANO switch with enhanced tactile feedback. 
- Fine tuning and full customization: Thanks to the E-TUBE PROJECT app, you can configure every function, including 3 programmable buttons and shift modes (two-step double-shift, hold-down multi-shift). 
- Advanced ergonomics: Short-throw levers, the I-SPEC-EV clamp, and rubber pads ensure a comfortable grip and intuitive controls. 
- Long-lasting battery (305 mAh): Offers more rides without recharging, for long outings without interruptions. 
- Simple and modern charging: The new Di2 system includes an easy-to-use charger for intuitive power management.