Shimano Ultegra Di2 RD-R8150 12 Speed Rear Derailleur
The Shimano Rd-R8150 Ultegra Di2 12-Speed Rear Derailleur E-Tube Rear Mech features Ultegra Shadow design with Di2 technology, providing easy and precise shifting with a light touch. The rear derailleur acts as the brains of the system with wireless connectivity to the shifters, and it's also the point where the system is charged. It provides ANT+ connection to third-party devices and replaces the handlebar junction. The derailleur has a button for Di2 operations and an LED light that denotes synchronized shift mode, setting mode, and charge requirements. The Low-profile Shadow design construction reduces the risk of damage in a crash. The derailleur offers programmed automatic motion at the touch of a switch, making shifting quick, smooth, and effortless. The removal of traditional mechanical cables in favor of electrical wires eliminates poor shifting caused by contaminants, corrosion, and stretching, and provides effortless gear shifts. The derailleur contains a saver, or fuse.
The Shimano Rd-R8150 Ultegra Di2 12-Speed Rear Derailleur E-Tube Rear Mech features Ultegra Shadow design with Di2 technology, providing easy and precise shifting with a light touch. The rear derailleur acts as the brains of the system with wireless connectivity to the shifters, and it's also the point where the system is charged. It provides ANT+ connection to third-party devices and replaces the handlebar junction. The derailleur has a button for Di2 operations and an LED light that denotes synchronized shift mode, setting mode, and charge requirements. The Low-profile Shadow design construction reduces the risk of damage in a crash. The derailleur offers programmed automatic motion at the touch of a switch, making shifting quick, smooth, and effortless. The removal of traditional mechanical cables in favor of electrical wires eliminates poor shifting caused by contaminants, corrosion, and stretching, and provides effortless gear shifts. The derailleur contains a saver, or fuse.
The Shimano Rd-R8150 Ultegra Di2 12-Speed Rear Derailleur E-Tube Rear Mech features Ultegra Shadow design with Di2 technology, providing easy and precise shifting with a light touch. The rear derailleur acts as the brains of the system with wireless connectivity to the shifters, and it's also the point where the system is charged. It provides ANT+ connection to third-party devices and replaces the handlebar junction. The derailleur has a button for Di2 operations and an LED light that denotes synchronized shift mode, setting mode, and charge requirements. The Low-profile Shadow design construction reduces the risk of damage in a crash. The derailleur offers programmed automatic motion at the touch of a switch, making shifting quick, smooth, and effortless. The removal of traditional mechanical cables in favor of electrical wires eliminates poor shifting caused by contaminants, corrosion, and stretching, and provides effortless gear shifts. The derailleur contains a saver, or fuse.
The Shimano Rd-R8150 Ultegra Di2 12-Speed Rear Derailleur E-Tube Rear Mech features Ultegra Shadow design with Di2 technology, providing easy and precise shifting with a light touch. The rear derailleur acts as the brains of the system with wireless connectivity to the shifters, and it's also the point where the system is charged. It provides ANT+ connection to third-party devices and replaces the handlebar junction. The derailleur has a button for Di2 operations and an LED light that denotes synchronized shift mode, setting mode, and charge requirements. The Low-profile Shadow design construction reduces the risk of damage in a crash. The derailleur offers programmed automatic motion at the touch of a switch, making shifting quick, smooth, and effortless. The removal of traditional mechanical cables in favor of electrical wires eliminates poor shifting caused by contaminants, corrosion, and stretching, and provides effortless gear shifts. The derailleur contains a saver, or fuse.
in 8 offers
The lowest price for Shimano Ultegra Di2 RD-R8150 12 Speed Rear Derailleur right now is $439.99 at Pushys, compared across 8 retailers.
The all-time low was $194.39 on 14 Mar 2026 — today's price is 126% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 12 Oct 2026.
Last updated at 12/10/2026 15:36:46
Shimano Unisex - Adult Ultegra Di2 RD-8150 Mod. 22 Rear Derailleur Grey 12 Speed
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Shimano RD-8150 Ultegra Di2 12-Speed Rear Derailleur
30-day returns
Shimano RD-8150 Ultegra Di2 12-Speed Rear Derailleur
Free delivery between Wed – Mon
Shimano Ultegra Di2 R8150 12sp Rear Derailleur
Shimano Ultegra RD-R8150 Di2 Rear Derailleur - 12 Speed - Black / 12 Speed
Free delivery
Shimano Ultegra Di2 RD-R8150 Rear Derailleur | Ivanhoe Cycles
Delivery $10
RD-R8150 Ultegra Di2 12-speed rear derailleur E-tube
Shimano Ultegra DI2 R8150 12 Speed Rear Derailleur
Delivery $19.40
originally posted on jensonusa.com
Well, it is just like any other shimano di2 component, easy to set up and reliable.I personally didn't feel any difference with my other 9270 rear derailleur.
originally posted on bikeinn.com
This rear derailleur works like watch, no complaints. All groupset is exciting in its work.
originally posted on pushys.com.au
Good price and free, trackable delivery from Pushys. Shimano Di2 12spd: The future is now.
| Number Of Speeds | 12-speed |
| Shifting Type | Electronic |
| Riding Style | Racing |
| Solution For | Wider range capacity |
| Terrain | Road |
Shimano Unisex - Adult Ultegra Di2 RD-8150 Mod. 22 Rear Derailleur Grey 12 Speed
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Shimano RD-8150 Ultegra Di2 12-Speed Rear Derailleur
30-day returns
Shimano RD-8150 Ultegra Di2 12-Speed Rear Derailleur
Free delivery between Wed – Mon
Shimano Ultegra Di2 R8150 12sp Rear Derailleur
Shimano Ultegra RD-R8150 Di2 Rear Derailleur - 12 Speed - Black / 12 Speed
Free delivery
Well, it is just like any other shimano di2 component, easy to set up and reliable.I personally didn't feel any difference with my other 9270 rear derailleur.
This rear derailleur works like watch, no complaints. All groupset is exciting in its work.
Good price and free, trackable delivery from Pushys. Shimano Di2 12spd: The future is now.
This is a great product ultra smooth shifting and light weight. I purchased this rear derailer at Jenson because the price was the most competitive.
Amazingly smooth gear changes. Make sure you update your levers’ firmware when cabled. Unfortnunately you can’t do this wirelessly, yet.
| Number Of Speeds | 12-speed |
| Shifting Type | Electronic |
| Riding Style | Racing |
| Solution For | Wider range capacity |
| Terrain | Road |
