{"product_id":"shimano-dura-ace-sm-ad91","title":"Shimano Dura Ace SM-AD91","description":"\u003cp\u003eThe Shimano Dura-Ace SM-AD91 is a clamp band adapter that mounts a braze-on front derailleur to frames without a braze-on hanger, with a built-in aluminum plate that stabilizes the derailleur under shifting load. It is designed for Di2 front derailleurs, works with mechanical ones too, and comes in 34.9mm or 31.8\/28.6mm clamp sizes.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFor frames without braze-on hanger\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for Di2 derailleurs\u003c\/li\u003e\n\u003cli\u003eAlso works with mechanical derailleurs\u003c\/li\u003e\n\u003cli\u003eBuilt-in aluminium plate stabilizes the derailleur while changing gears\u003c\/li\u003e\n\u003cli\u003eFailure to use this clamp could result in damage to the bicycle frame\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Shimano","offers":[{"title":"SM-AD91, Clamp band unit, 34.9mm","offer_id":51634344853819,"sku":"270774-01","price":24.99,"currency_code":"CAD","in_stock":false},{"title":"SM-AD91, Clamp band unit, 31.8 and 28.6mm","offer_id":51634344886587,"sku":"270774-02","price":24.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0877\/7658\/files\/270774-01_1.jpg?v=1788142907","url":"https:\/\/www.ohmcycles.com\/fr\/products\/shimano-dura-ace-sm-ad91","provider":"OHM Electric Bikes","version":"1.0","type":"link"}