What's Included -FC-R9200 Hollowtech II 2x12-Speed Crankset — The Dura-Ace 12-speed crankset is a 52-36T option, with the choice of 170mm or 172.5mm crank arm lengths. -CS-R9200 12-Speed Cassette — The Dura-Ace 12-Speed Cassette comes in a 11-30T configuration with this package, but will be available in a 11-34T option elsewhere. The cassette is compatible with Shimano 11-speed freehub bodies or the new Shimano 12-speed freehub body. -RD-R9250 12-Speed Rear Derailleur — The Dura-Ace RD-R9250 rear derailleur features a Shadow design and comes with integrated D-FLY connectivity so you can pair with Bluetooth & ANT+ compatible devices. It connects to the battery via included 1200mm E-Tube wire. -FD-R9250 Front Derailleur — The Dura-Ace FD-R9250 braze-on front derailleur is smaller (33% less frontal area) and lighter (96 grams) than previous models. It also connects to the battery via included 900mm E-Tube wire. -ST-R9270 Shifters — The new Dura-Ace shifters feature wireless Di2 connectivity and 2x12-speed Dual-Control levers. They have a 4.6mm longer reach for increased security and control. -BR-R9270 Flat-Mount Brake Calipers (160mm Front, 140mm Rear), Resin Pads, & Hoses — The updated Dura-Ace hydraulic disc brakes have a 13% wider control area from the brake lever and 10% wider pad clearance for better performance. -RT-MT900 Center Lock Disc Rotors (160mm & 140mm) — These lightweight rotors have excellent cooling and braking performance thanks to Shimano's ICE Technology. The lock rings are included. -Dura-Ace/XTR CN-M9100 12-Speed Chain — This ultralightweight chain has 126 links for 12-speed drivetrains and features a a Quick-Link. -Di2 EW-SD300 (900mm/1200mm) Electric Cables, BT-DN300 3-Port Battery, & EW-EC300 Charging Cable — The battery has been improved for extended life. Package ships via Bike Flights with premium insurance.
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