{"product_id":"kit-de-mise-a-niveau-topeak-chuckhead-dx","title":"TOPEAK CHUCKHEAD DX Upgrade Kit","description":"\u003cp data-path-to-node=\"4\"\u003eThe \u003cstrong\u003eTOPEAK\u003c\/strong\u003e \u003cb data-index-in-node=\"3\" data-path-to-node=\"4\"\u003eChuckHead DX\u003c\/b\u003e \u003cstrong\u003eUpgrade Kit\u003c\/strong\u003e is a high-performance inflator designed to solve the problem of hard-to-reach valves. Its ultra-thin head and 90° elbow connection make it easy to connect to Presta valves, even in the tight spaces of \"stick\" wheels or very deep-profile road rims.\u003c\/p\u003e \u003cp data-path-to-node=\"5\"\u003eUnlike conventional pump heads that require a cumbersome side lever, the ChuckHead DX uses a threaded or axial pressure locking system (depending on mounting) that guarantees a perfect seal with no air leakage, even at pressures in excess of 11 bar (160 psi).\u003c\/p\u003e \u003cp data-path-to-node=\"14\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"14\"\u003eDoes it work on Schrader valves (large valves)?\u003c\/b\u003e No, the ChuckHead DX is a specific technical part optimized for \u003cb data-index-in-node=\"153\" data-path-to-node=\"14\"\u003ePresta valves\u003c\/b\u003e. For full compatibility, consider the \u003ci data-index-in-node=\"227\" data-path-to-node=\"14\"\u003eSmartHead\u003c\/i\u003e or \u003ci data-index-in-node=\"240\" data-path-to-node=\"14\"\u003eTwinHead\u003c\/i\u003e kits.\u003c\/p\u003e \u003cp data-path-to-node=\"15\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"15\"\u003eIs it compatible with valve extenders?\u003c\/b\u003e Absolutely. In fact, that's its main use. It adapts perfectly to valve extenders used on 50mm, 60mm or 80mm carbon rims.\u003c\/p\u003e \u003cp data-path-to-node=\"16\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"16\"\u003eDoes the head screw onto the valve?\u003c\/b\u003e No. The DX system uses an internal compression mechanism that firmly grips the Presta valve thread to prevent air loss during pumping.\u003c\/p\u003e \u003cp data-path-to-node=\"17\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"17\"\u003eCan I install it on another brand of pump (e.g. Zéfal, Lezyne, JoeBlow)?\u003c\/b\u003e Yes, thanks to the connection adapters supplied, this kit is designed to be \"universal\" and give new life to a pump whose original head is faulty or unsuitable.\u003c\/p\u003e \u003cp data-path-to-node=\"17\"\u003e \u003c\/p\u003e","brand":"TOPEAK","offers":[{"title":"Default Title","offer_id":56448317751676,"sku":"PBS_TOPE061394","price":29.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/3444\/9318\/files\/imgi_3_TO6420_01.jpg?v=1774284244","url":"https:\/\/probikeshop-irl.com\/products\/topeak-chuckhead-dx-upgrade-kit-2","provider":"Probikeshop","version":"1.0","type":"link"}