Shimano Ultegra RD-R8150E Di2 Rear Derailleur - 12-Speed Medium Cage Includes TL-EW300 Black
$409.99
With the fast and accurate Di2 shifting technology, the Shimano 12-speed Ultegra RD-R8150 rear derailleur is extremely versatile thanks to a single cage length option compatible with 11-28, 11-30, and 11-34 cassettes.
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