{"product_id":"surly-singlespeed-track-cog-sprocket-1-8","title":"Surly singlespeed track cog sprocket 1 8","description":"Product Description  For the really tough guys: the 1\/8\" Track Cog by Surly  The track Cog is only made for really tough guys, who love the feeling of riding in pre-freehub times. It truly requires a lot of practice and some hardened leg muscles - but when you've got it dow, you have a lot of fun.  Technical Information:Material:steel (SCM415 CroMoly)Compatibility:1.375\" x 24 tpi ISO hubsTooth Count:13, 14, 15, 16, 17, 18, 19, 20, 21, 22Tooth Thickness:1\/8\"Thread Width:7.4 mmFeatures:Fixed Gear (without freehub) for Surly hubsuse only with lockringfor singlespeed chainsManufacturer Numbers:13 tooth:FW206114 tooth:FW206215 tooth:FW206316 tooth:FW206417 tooth:FW206518 tooth:FW206619 tooth:FW206720 tooth:FW206821 tooth:FW206922 tooth:FW2070 sold-outContents:1 x Surly Singlespeed Track Cog, 1\/8\"not incl. lockring   Manufacturer: Surly  6400 W 105th St  Bloomington  MN 55438  USA  derby@surlybikes.com Distributor: Cosmic Sports GmbH  Leyher Straße 47  90763 Fürth  Germany  info@cosmicsports.de","brand":"Surly","offers":[{"title":"Default Title","offer_id":64230895223133,"sku":"0708752032026","price":72.99,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0331\/2988\/9924\/files\/e1405f18d5ad247c.jpg?v=1776418362","url":"https:\/\/fietsweb.nl\/products\/surly-singlespeed-track-cog-sprocket-1-8","provider":"Fietsweb.nl","version":"1.0","type":"link"}