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Shimano Ultegra RD-R8150 12-Speed Di2 Rear Derailleur
March 10, 2026MPN: IRDR8150F
$470.00
Features a carbon derailleur cage and delivers quick and reliable shifting
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Shimano Ultegra RD-R8150 12-Speed Di2 Rear Derailleur
The Shimano Ultegra RD-R8150 12-Speed Di2 Rear Derailleur delivers quick and reliable shifting. This derailleur is 58% faster than the previous generation and is made to balance performance with price. It features a carbon derailleur cage and standard pulley wheel bearings. Now offered in a singular derailleur cage length, this derailleur is compatible with 30T and 34T cassettes.
Technology
Shimano’s Fastest Shifting
Already known for its fast and reliable shifting, the Shimano Ultegra RD-R8150 is Shimano’s fastest rear derailleur ever.
LED Indicator
See your battery level and what mode the derailleur is in with just a glance at its LED light.
Compact Design
This derailleur prioritizes weight while maintaining a compact profile with charge port and mode button.
Function Button
Use the Shimano Function Button to pair your derailleur, see your battery level and change shifting modes.
Compatibility
- Compatible with Shimano 12-speed drivetrains
Shimano Ultegra RD-R8150 Rear Derailleur Specs
- Speed: 12-speed
- Color: Black
- Cage Material: Carbon
- Pulley Bearings Material: Standard
- Weight: 262 grams
Q&A
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