Product Details

Robust, indestructible and ready for anything. The XT Di2 M8250 12-speed rear derailleurs with medium and long cage feature the brand new wireless Di2 shifting technology and an automatic impact recovery function - immediately returns the derailleur motor to its original position after an impact.

What doesn't get hit can't get broken - the flat, wedge-shaped design of the new XT rear derailleur prevents most stone chips and impacts on the trail. And if an impact does occur, the rear derailleur can slide off obstacles on the trail thanks to the smooth outer coating, preventing catastrophic damage. The automatic impact recovery function immediately returns the derailleur motor to its original position after an impact, while the wide joint structure, durable carbon plate, skid plate design and solid derailleur pulleys ensure robustness and durability.

• GS medium cage for 9-45 cassette: The rear derailleur with medium-length cage, optimized for shock resistance, is the first choice for both top enduro athletes and weight-conscious XC racers
• SGS long cage for 10-51 cassette: Speed paired with range; the long cage rear derailleur withstands hard impacts on the trail and scores with lightning-fast shifting speed and top-class performance at the same time
• Robust Design: A wide link structure, skid-plate design, durable plate and solid pulley add robustness and longevity
• RD Protection Function: A new automatic impact recovery function instantly returns the derailleur motor to its original position after impact
• SHIMANO SHADOW ES: A slimmer, stronger evolution of Shimano’s pioneering chain-stabilizing Shadow concept
• Precise & Clean Wireless Shifting: Wireless Di2 paired with HYPERGLIDE+ technology result in smooth, precise and instantaneous shifts
• Wedge Shape: The new wedge shape of Shimano’s most survivable rear derailleur to-date avoids more direct impacts,and smoothly glances off rocks if there is a hit
• Protected Battery: Tucked safely inside an enclosed space, the battery won’t budge even in rough terrain, while remaining completely removable for charging
• LED status display
• Weight without battery: 468g [SG]
• Note: BT-DN320 Battery and EC-DN100 Charger not included!!

About Shimano
Established in Japan in 1921, Shimano is the worlds largest bicycle component manufacturer. Whether it be drive systems, brakes, pedals or shoes, Shimano stands for reliable quality and performance. From Road & Gravel to Mountain, Touring & Urban use, Mechanical or Electric.