{"product_id":"shimano-sm-ad91-front-derailleur-clamp","title":"Shimano SM-AD91 Front Derailleur Clamp","description":"\u003cdiv\u003e\n\u003cp\u003eThe \u003cstrong\u003eShimano SM-AD91 Front Derailleur Clamp\u003c\/strong\u003e lets you run a braze-on front derailleur on a round seat tube — a straightforward solution when your frame lacks a braze-on mount. Machined from aluminum, the hinged clamp accepts a standard braze-on derailleur fixing bolt and is compatible with both mechanical and electronic front derailleurs, Shimano or otherwise.\u003c\/p\u003e\n\u003cp\u003eTwo sizes are available. The 34.9mm clamp fits large-diameter seat tubes directly. The 28.6mm variant ships with a shim to bring a \u003cstrong\u003e31.8mm clamp down to 28.6mm\u003c\/strong\u003e, covering the most common road and gravel tube diameters in a single package.\u003c\/p\u003e\n\u003cul class=\"specs_at_a_glance\"\u003e\n  \u003cli\u003eMaterial: Aluminum\u003c\/li\u003e\n  \u003cli\u003eAvailable sizes: 28.6mm (with shim), 34.9mm\u003c\/li\u003e\n  \u003cli\u003eColor: Black\u003c\/li\u003e\n  \u003cli\u003eCompatibility: Braze-on front derailleurs, mechanical and electronic\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Shimano","offers":[{"title":"28.6mm \/ Black","offer_id":43594281353260,"sku":"ISMAD91MS","price":21.0,"currency_code":"USD","in_stock":true},{"title":"34.9mm \/ Black","offer_id":43594281386028,"sku":"ISMAD91L","price":20.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/7684\/9196\/files\/shimano-sm-ad91-front-derailleur-clamp-4755466.jpg?v=1771294693","url":"https:\/\/ricycles.com\/products\/shimano-sm-ad91-front-derailleur-clamp","provider":"RA Cycles","version":"1.0","type":"link"}