Shimano Ultegra R8150 Di2 12-Speed Rear Derailleur | Trek Bikes

With the fastest, most accurate shifting on the market, the new 12-speed Ultegra R8150 rear derailleur is more versatile thanks to a single cage length option compatible with 11-28, 11-30, and 11-34 cassettes.

Product details

Fastest ever rear shifting, 58% faster than Dura-Ace R9150 rear derailleur
Compact design includes an integrated wireless unit, charger, switch
LED status indicator displays battery information, pairing, adjust mode, and more
Wider range capacity, up to 34t cog
Includes TL-EW300 cable plug tool

Manufacturer part #	IRDR8150A
Cage	Long cage
Speed	12
Largest cog	34t
Weight	262g

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Weights are based off pre-production products at time of publication. Weights may vary in final production.

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