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Ships within 48 hours · Estimated delivery Oct 29 - Nov 3
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Description
Shimano Dura-Ace Di2 12-speed R9250 E-tube Rear DerailleurDigital integrated intelligence or di2: with programmed automatic motion at the touch of a switch the Dura Ace Di2 rear derailleur is quick, smooth and effortless, making for unmatched drivetrain efficiency. Features: The rear derailleur is now the brains of the system with wireless connectivity to the shifters. It acts as the point the system is charged, provides Ant+ connection to 3rd party devises and replaces the handlebar junction Button on the
Digital integrated intelligence or di2: with programmed automatic motion at the touch of a switch the Dura Ace Di2 rear derailleur is quick, smooth and effortless, making for unmatched drivetrain efficiency.Features:
- The rear derailleur is now the brains of the system with wireless connectivity to the shifters. It acts as the point the system is charged, provides Ant+ connection to 3rd party devises and replaces the handlebar junction
- Button on the derailleur for Di2 operations, and led light denotes synchronized shift mode, setting mode and charge requirements
- Programmed automatic motion at the touch of a switch makes this derailleur quick, smooth and effortless to shift
- Synchronized shift designed, developed to choose the next biggest or lowest gear ratio irrespective of whether a gear change needs to be made by the front or rear derailleur
- The removal of traditional mechanical cables in favour of electrical wires not only eliminates poor shifting caused by contaminates, corrosion and stretching
- Low profile shadow derailleur design
- Derailleur contains a saver (fuse) function, where the inner structure is protected from strong impacts
- 11-34t wide gear ratio capacity will cater for compact setups as well as the traditional road double
- Full carbon fibre inner and outer pulley plates enhance rigidity and reduce weight
- Titanium b axle bolt for further weight savings
- High tolerance cold forged aluminium link plates and body construction is extremely light and durable
- Four self-lubricating micro-machined fluorine-coated link pivot bushings provide low-friction shifting
- Pulleys are made of tough dupont zytel for longer life and less chain noise
- 12-speed e-tube Di2 compatible
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 5
Includes everything you need and a bonus to get the cord wrap
I bought this to route the cords up to the monitor on a height-adjustable desk. The top of the desk is an inch thick, and this was easy to drill through. To make sure I got a clean cut and did not damage the top, I put painters' tape on the area where I wanted to cut and drilled a small starter hole to get it exactly in the right spot. It cut a really clean hole from the top, and the plastic insert fit perfectly.
Once I got the hole cut and the wires run where I wanted them, I put the cord wrap on. The tool that comes with the cord wrap is really slick and super easy to use. I was able to bundle together three cords that hang off the side of the desk. Given that the desk is adjustable, it was a nice bonus to get the cord manager with the kit, as it keeps the cords from getting hung up in the desk when adjusting it.
I'm very happy with the purchase, great price.
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Reviewed in the United States on December 14, 2025
★★★★★ 4
Good product
The hole covers are great. As far as the hole cutting bit. Not so much. But still worth the price.
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Reviewed in the United States on October 26, 2025
★★★★★ 5
Good tool
Easy to use. Worked perfectly.
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Reviewed in the United States on October 4, 2025
★★★★★ 5
great product
love it great product
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Reviewed in the United States on April 12, 2026
★★★★★ 5
Use
Extremely easy to use
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Reviewed in the United States on February 10, 2026