{"product_id":"shimano-dura-ace-rd-r9250","title":"Shimano Dura-Ace RD-R9250","description":"\u003cp data-path-to-node=\"1\"\u003eThe Shimano Dura-Ace RD-R9250 is the heart of Shimano’s premier 12-speed Di2 ecosystem. This rear derailleur is faster, smarter, and more integrated than ever before. In a significant departure from previous generations, the RD-R9250 now serves as the system's \"brain\" and charging hub, housing the wireless transceiver, charging port, and function button. With a 58% increase in shifting speed over the already-rapid R9150, this derailleur offers the most precise and lightning-fast gear changes available in the cycling world. Its single-cage length design is now compatible with cassettes up to 34T, making it as versatile as it is high-performing.\u003c\/p\u003e\n\u003cp data-path-to-node=\"2\"\u003eKey Features\u003c\/p\u003e\n\u003cul data-path-to-node=\"3\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"3,0,0\"\u003eIntegrated Wireless Hub: Houses the ANT+\/Bluetooth transceiver for wireless communication with the shifters and direct connection to the E-TUBE PROJECT app.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"3,1,0\"\u003eUnified Charging Point: Features the same magnetic charging port used for the entire system, eliminating the need for a separate junction box.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"3,2,0\"\u003eShadow RD Profile: Low-profile design protects the derailleur from impact and ensures stable shifting performance even on rough roads.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"3,3,0\"\u003eCFRP Construction: Extensive use of Carbon Fiber Reinforced Polymer (CFRP) in the plate and link components minimizes weight while maintaining extreme rigidity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"3,4,0\"\u003eWide-Range Capability: A single cage length handles everything from an 11-28T up to an 11-34T 12-speed cassette.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"4\"\u003eSpecifications\u003c\/p\u003e\n\u003cul data-path-to-node=\"5\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,0,0\"\u003eDrivetrain Speeds: 12-Speed Di2\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,1,0\"\u003eMaximum Low Sprocket: 34T\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,2,0\"\u003eMinimum Low Sprocket: 28T\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,3,0\"\u003eTotal Capacity: 37T\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,4,0\"\u003ePulley Teeth: 11T\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,5,0\"\u003eCommunication: Wireless (Di2) \/ Wired (EW-SD300)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"6\"\u003eTypical Components Included\u003c\/p\u003e\n\u003cul data-path-to-node=\"7\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,0,0\"\u003eRD-R9250 Rear Derailleur\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,1,0\"\u003eB-Axle Washer\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,2,0\"\u003eUser Manual\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,3,0\"\u003e\u003ci data-path-to-node=\"7,3,0\" data-index-in-node=\"0\"\u003e(Note: EW-EC300 Charging cable sold separately)\u003c\/i\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Shimano","offers":[{"title":"Rear Derailleur Only \/ Wireless Setup \/ Black","offer_id":54343584973172,"sku":null,"price":80240.0,"currency_code":"INR","in_stock":true},{"title":"Rear Derailleur Only \/ Semi-Wired Setup \/ Black","offer_id":54343585005940,"sku":null,"price":80240.0,"currency_code":"INR","in_stock":true},{"title":"Rear Derailleur + EW-EC300 Charging Cable \/ Wireless Setup \/ Black","offer_id":54343585038708,"sku":null,"price":80240.0,"currency_code":"INR","in_stock":true},{"title":"Rear Derailleur + EW-EC300 Charging Cable \/ Semi-Wired Setup \/ Black","offer_id":54343585071476,"sku":null,"price":80240.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/1991\/6660\/files\/shimano-dura-ace-di2-rd-r9250-rear-derailleur-1-1053527.webp?v=1775843569","url":"https:\/\/velorays.com\/products\/shimano-dura-ace-rd-r9250","provider":"Velorays","version":"1.0","type":"link"}