Shimano Ultegra RD-R8150 Di2 12-Speed Rear Derailleur

$301.00 Sale Save

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Now simplified with a single derailleur cage length, the new 12-speed Shimano ULTEGRA R8150 rear derailleur packs our fastest, most precise shifting into a more approachable option.

With our fastest, most accurate shifting, the new 12-speed ULTEGRA R8150 rear derailleur is more versatile than ever thanks to a single cage length option that is compatible with 28-34T low sprockets.

Our fastest ever rear shifting, 58% faster than RD-R9150
Compact design includes an integrated wireless unit, charger, and switch
LED status indicator - Battery indicator, Pairing, Adjust mode, etc.
Wider range capacity
Max. low sprocket: 34T


Mfr Claimed Weight