Shimano RD-R8150 Rear Derailleur Ultegra Di2 12-Speed
SHIMANO's Ultegra Di2 RD-R8150 12-speed rear derailleur was created to guarantee very fast and ultra-precise gear changes, while ensuring more flexibility. This derailleur is aimed at cyclists looking for performance and comfort. VERY FLEXIBLE The 12-speed Ultegra Di2 RD-R8150 is particularly flexible, thanks in particular to its cage length. It accepts cassettes from 11-30 to 34 teeth and has a wireless unit to improve speed and responsiveness during your gear changes. CUSTOMIZABLE With the help of the e-Tube application, you can enter your transmission preferences. It is also possible to adjust the speed of gear changes, or to assign specific functions to the programming keys of the gear lever.
SHIMANO's Ultegra Di2 RD-R8150 12-speed rear derailleur was created to guarantee very fast and ultra-precise gear changes, while ensuring more flexibility. This derailleur is aimed at cyclists looking for performance and comfort. VERY FLEXIBLE The 12-speed Ultegra Di2 RD-R8150 is particularly flexible, thanks in particular to its cage length. It accepts cassettes from 11-30 to 34 teeth and has a wireless unit to improve speed and responsiveness during your gear changes. CUSTOMIZABLE With the help of the e-Tube application, you can enter your transmission preferences. It is also possible to adjust the speed of gear changes, or to assign specific functions to the programming keys of the gear lever.
SHIMANO's Ultegra Di2 RD-R8150 12-speed rear derailleur was created to guarantee very fast and ultra-precise gear changes, while ensuring more flexibility. This derailleur is aimed at cyclists looking for performance and comfort. VERY FLEXIBLE The 12-speed Ultegra Di2 RD-R8150 is particularly flexible, thanks in particular to its cage length. It accepts cassettes from 11-30 to 34 teeth and has a wireless unit to improve speed and responsiveness during your gear changes. CUSTOMIZABLE With the help of the e-Tube application, you can enter your transmission preferences. It is also possible to adjust the speed of gear changes, or to assign specific functions to the programming keys of the gear lever.
SHIMANO's Ultegra Di2 RD-R8150 12-speed rear derailleur was created to guarantee very fast and ultra-precise gear changes, while ensuring more flexibility. This derailleur is aimed at cyclists looking for performance and comfort. VERY FLEXIBLE The 12-speed Ultegra Di2 RD-R8150 is particularly flexible, thanks in particular to its cage length. It accepts cassettes from 11-30 to 34 teeth and has a wireless unit to improve speed and responsiveness during your gear changes. CUSTOMIZABLE With the help of the e-Tube application, you can enter your transmission preferences. It is also possible to adjust the speed of gear changes, or to assign specific functions to the programming keys of the gear lever.
in 12 offers
The lowest price for Shimano RD-R8150 Rear Derailleur Ultegra Di2 12-Speed right now is $439.99 at Pushys, compared across 10 retailers.
The all-time low was $370.51 on 10 May 2025 — today's price is 19% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 11 May 2026.
Last updated at 11/05/2026 19:02:46
Shimano RD-8150 Ultegra Di2 12-Speed Rear Derailleur
30-day returns
Shimano Ultegra RD-R8150 12-Speed Di2 Rear Derailleur
Free 30-day returns
Shimano Ultegra RD-R8150 12-Speed Di2 Rear Derailleur
Free delivery
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
Shimano Ultegra DI2 RD-R8150 Rear Derailleur
Shimano Ultegra DI2 RD-R8150 Rear Derailleur 12 Speed
Delivery $10
RD-R8150 Ultegra Di2 12-speed rear derailleur E-tube
Delivery $32.66
Shimano Ultegra DI2 R8150 12 Speed Rear Derailleur
Delivery $19.13
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.
originally posted on sigmasports.com
Amazingly smooth gear changes. Make sure you update your levers’ firmware when cabled. Unfortnunately you can’t do this wirelessly, yet.
| Rear derailleur speeds | 12-speed |
| Compatible chain | CN-M8100 HG 12-speed |
| Large sprocket teeth | 34 teeth |
Shimano RD-8150 Ultegra Di2 12-Speed Rear Derailleur
30-day returns
Shimano Ultegra RD-R8150 12-Speed Di2 Rear Derailleur
Free 30-day returns
Shimano Ultegra RD-R8150 12-Speed Di2 Rear Derailleur
Free delivery
Shimano Ultegra Di2 R8150 12sp Rear Derailleur
Shimano Ultegra RD-R8150 Di2 Rear Derailleur - 12 Speed - Black / 12 Speed
Free delivery
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.
Amazingly smooth gear changes. Make sure you update your levers’ firmware when cabled. Unfortnunately you can’t do this wirelessly, yet.
| Rear derailleur speeds | 12-speed |
| Compatible chain | CN-M8100 HG 12-speed |
| Large sprocket teeth | 34 teeth |
