{"product_id":"shimano-dura-ace-di2-fd-r9150-front-derailleur","title":"Shimano Dura-Ace Di2 FD-R9150 Front Derailleur","description":"\u003cdiv\u003e\n\u003cp\u003eThe \u003cstrong\u003eShimano Dura-Ace Di2 FD-R9150 Front Derailleur\u003c\/strong\u003e is the refined successor to the 9050, carrying forward the electronic precision Dura-Ace Di2 is known for while arriving at 104g — a 10g reduction over its predecessor. The slimmer profile isn't just about weight; it also reduces the risk of crash damage, a practical improvement for riders who push hard in tight race situations.\u003c\/p\u003e\n\n\u003cp\u003eShifting under load is where the FD-R9150 earns its place at the top of Shimano's road lineup. The auto-trim function manages cage position automatically, eliminating chain rub without any manual intervention — you change gear, it handles the rest. This derailleur runs on E-Tube wiring and is compatible with both 9050 Dura-Ace and 6870 Ultegra Di2 systems, giving it genuine flexibility across generations. The braze-on fitting is the only mount option, and wires are sold separately. \u003cstrong\u003eCompatible big ring sizes range from 46 to 55 teeth.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eShimano Dura-Ace Di2 FD-R9150 Front Derailleur Specs at a Glance\u003c\/h3\u003e\n\u003cul class=\"specs_at_a_glance\"\u003e\n  \u003cli\u003eWeight: 104g\u003c\/li\u003e\n  \u003cli\u003eMount: Braze-on only\u003c\/li\u003e\n  \u003cli\u003eCompatible chainring range: 46–55T\u003c\/li\u003e\n  \u003cli\u003eE-Tube compatible: works with 9050 Dura-Ace and 6870 Ultegra Di2\u003c\/li\u003e\n  \u003cli\u003eWires not included — purchased separately\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Shimano","offers":[{"title":"Black \/ Braze-On","offer_id":43520117047340,"sku":"IFDR9150F","price":249.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/7684\/9196\/files\/shimano-dura-ace-di2-fd-r9150-front-derailleur-5015067.jpg?v=1771297867","url":"https:\/\/ricycles.com\/products\/shimano-dura-ace-di2-fd-r9150-front-derailleur","provider":"RA Cycles","version":"1.0","type":"link"}