{"product_id":"surly-track-cog-1-8-x-15t-silver","title":"Surly Track Cog 1\/8'' X 15t Silver","description":"\u003cp\u003eSurly track cogs are threaded the same as a BMX freewheel (1.375 x 24 tpi right-hand threads). This means that they will fit on single-speed rear hubs, as well as BMX freewheel hubs, but this application is not recommended. Track cogs are meant to work on track hubs only.\u003c\/p\u003e\n\u003cul class=\"bullet-points\"\u003e\n\u003cli class=\"model-bullet\"\u003e415 hardened chromoly steel\u003c\/li\u003e\n\u003cli class=\"model-bullet\"\u003e1.375\" x 24 tpi\u003c\/li\u003e\n\u003cli class=\"model-bullet\"\u003ePhoto for color and material reference only\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Surly","offers":[{"title":"Default Title","offer_id":51932158624057,"sku":null,"price":39.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0731\/9286\/6105\/files\/FW2064.jpg?v=1770839276","url":"https:\/\/midwestcyclerykc.com\/products\/surly-track-cog-1-8-x-15t-silver","provider":"Midwest Cyclery KC","version":"1.0","type":"link"}