Shimano XTR RD-M9250-SGS Di2 Wireless Rear Derailleur - 12-Speed, Long Cage, Shadow ES, Black/Gray mountain-bike-shifter Its unique Turntable Heel Piece

Its unique Turntable Heel Piece was crafted to rotate directly below the tibia

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The only thing better than walking on Cloud 9 might be skiing down it

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Shimano XTR RD-M9250-SGS Di2 Wireless Rear Derailleur - 12-Speed, Long Cage, Shadow ES, Black/Gray mountain-bike-shifter Its unique Turntable Heel PieceThe Shimano XTR Di2 Rear Derailleur (RD M9250 SGS) is a 12 speed wireless mountain bike derailleur built for technical trail riding and racing. It runs on Shimano's Di2 electronic shifting platform paired with HYPERGLIDE+ technology, delivering instant, precise shifts at the push of a button. The long cage (SGS) design accommodates a 10 51T cassette range, giving riders the gear spread needed for steep climbs without sacrificing top end performance.