Shimano Dura-Ace RD-R9250 Di2 Rear Derailleur

The Shimano Dura-Ace RD-R9250 Di2 Rear Derailleur is a top-tier component designed for road cycling speedsters who demand the best in performance and reliability. This high-quality derailleur is part of Shimano's prestigious Dura-Ace series, known for its superior engineering and cutting-edge technology. The RD-R9250 Di2 model features Shimano's innovative electronic shifting system, providing lightning-fast, precise gear changes at the touch of a button. This derailleur is also designed to handle a wide range of gear ratios, making it a versatile choice for a variety of road cycling conditions and terrains. The Shimano Dura-Ace RD-R9250 Di2 Rear Derailleur is not just about performance, it also boasts a sleek, aerodynamic design that complements any high-end road bike. The derailleur's compact and lightweight construction doesn't compromise on durability, ensuring it can withstand the rigors of intense road cycling. The RD-R9250 Di2 model also integrates seamlessly with other Shimano Di2 components for a streamlined, efficient drivetrain. With its advanced features and superior quality, the Shimano Dura-Ace RD-R9250 Di2 Rear Derailleur is a testament to Shimano's commitment to providing cyclists with the best possible riding experience. 
 
PRODUCT CONDITION
 
This UnNew Shimano Dura-Ace RD-R9250 Di2 Rear Derailleur is in Good condition. 
 
Products in Good condition have been well loved, but still have life left in them. Signs of wear may include pilling, snags, lint, animal hair, dried dirt, minor but noticeable staining, and other cosmetic imperfections. Small tears or holes may be present, but will not affect the functionality of the item. 
 
With this item, the following damages were observed: 

-some scuffing on paint finish

-light dirt and dust 



TECH SPECS

• Premium-level 12-speed road Di2 Rear Derailleur for Shimano's R9200-series components
• Greater gear capacity, with faster and more efficient shifting with Hyperglide+ road cassettes; RD features essential connections formerly housed in Junction A boxes
• Direct attachment (hanger-style) mount, as well as Direct Mount option after removing link)
• Shimano Shadow RD design is compact to the frame
• Four fluoric coated link bushings with body featuring aluminum and CFRP construction
• Hollow anodized aluminum B and B2 axle
• Both inner and outer cage plates are CFRP composite
• Composite guide and tension pulley wheels, 11T each with recessed covers and stainless steel bolts
• Max front chainring differential is 16T (ex. 50-34, 52-36 chainring combos)
• Max large cog: 34T | Minimum large cog: 28T | Minimum small cog: 11T
• Di2 feature: SD300 wire port, Charging port for EW-EC300 USB cable, LED indicator, Adjust button, integrated D-FLY system for wireless communication to 4th gen e-Tube app
• System requires a single SD300-series e-Tube wire from the internal seatpost battery to the rear derailleur (separate wire runs from battery to the front derailleur)
• Does NOT include the EW-EC300 USB charging cable
• Finish: Dura-Ace Black polished (series)
• Weight: 216 grams (actual)