{"product_id":"challenge-gravel-grinder-race-clincher","title":"Challenge Gravel Grinder Race - Clincher","description":"\u003cp\u003eThe Gravel Grinder is our original and often-imitated fast gravel design. It combines a speedy diamond center for low rolling resistance with aggressive shoulder knobs that reliably hook-up when the terrain gets soft, muddy or a bit sketchy. \u003c\/p\u003e\n\u003cp\u003eWith our RACE series, we start where other tires stop - we utilize ultralight 60TPI nylon casings and superior tread compounds - to give our traditional vulcanized tires excellent ride feel and quality that is more affordable than our handmade offerings.\u003c\/p\u003e\n\u003cp\u003eChallenge clincher tires are designed for use with tubes and hooked rims.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCONSTRUCTION: \u003c\/strong\u003eVulcanized\u003cbr\u003eChallenge vulcanized tires take full advantage of our construction know-how and awesome tread designs – It's tough to beat the durability, good performance and low cost of vulcanized construction. We work with proven factories to bring iconic Challenge models to more riders.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSERIES: \u003c\/strong\u003eRACE (Vulcanized)\u003cbr\u003eValue and Performance – It's tough to beat the durability, good performance and low cost of vulcanized construction. Our RACE series brings iconic Challenge tread patterns and compounds to more riders.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCASING: \u003c\/strong\u003eNylon Superlight 60TPI\u003cbr\u003eVulcanized Nylon tire casings are the industry standard. Easy to produce and offering excellent durability and high performance at a moderate cost, they are the most common variety of tire available.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCOMPOUND:\u003c\/strong\u003e SMART-V\u003cbr\u003eA specially formulated version of our SMART compound that is adapted to the different construction of vulcanized tires.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePUNCTURE PROTECTION: \u003c\/strong\u003ePPS\u003cbr\u003eOur Puncture Protection System (PPS) is a tough, tightly-woven fabric placed between the tread and casing to increase puncture resistance.\u003c\/p\u003e","brand":"Challenge","offers":[{"title":"Black \/ 700 x 42c","offer_id":52837557207347,"sku":"210000112670","price":74.99,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2969\/4180\/files\/GravelGrinderRace-Clincher.jpg?v=1765503595","url":"https:\/\/staedcycles.com\/products\/challenge-gravel-grinder-race-clincher","provider":"Steed Cycles","version":"1.0","type":"link"}