{"product_id":"mousse-anti-pincement-odyssey-optis-insert-700x25-30-sans-valve","title":"Anti-Pinch Flat ODYSSEY Optis Insert 700x25\/30 without Valve","description":"\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003eThe \u003cstrong\u003eODYSSEY OPTIS pneumatic tyre insert\u003c\/strong\u003e \u003cstrong\u003e(without valve) \u003c\/strong\u003eoffers a unique approach to tubeless protection. Unlike traditional foam inserts, the OPTIS (\u003cstrong\u003eOdyssey Pneumatic Tyre Insert System\u003c\/strong\u003e) is an independent pneumatic chamber that sits inside the tubeless tyre and inflates to a higher pressure than the tyre itself. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis design allows you to run relatively low pressure in the tyre to enhance \u003cstrong\u003egrip, comfort and efficiency on rough surfaces\u003c\/strong\u003e, while the high-pressure insert keeps the tyre seated and helps protect the rim against impacts and pinch flats. As a starting point, Odyssey recommends lowering tyre pressure by about 10% and inflating the OPTIS roughly 25% above the desired tyre pressure, while always ensuring a higher pressure inside the insert. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe OPTIS also exerts pressure on the tyre beads to keep them seated against the rim. This function significantly reduces the risk of \u003cstrong\u003epartial tyre unseating and air loss (\"burping\")\u003c\/strong\u003e under high loads. In the event of total tyre pressure loss, the insert helps to keep the tyre temporarily on the rim, providing limited \u003cstrong\u003erun-flat\u003c\/strong\u003e capability to allow the rider to slow down and stop more easily. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eParticularly lightweight compared to many traditional tubeless inserts, the OPTIS system is also easy to install: mounting is similar to fitting an inner tube, and inflating it helps push the tyre beads into the rim hooks. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eDeveloped for performance, this system was notably showcased at the highest level when the \u003cstrong\u003eLidl-Trek team used it during the 2026 Paris-Roubaix\u003c\/strong\u003e, following extensive testing ahead of the classic.\u003c\/p\u003e\n\u003cp\u003e\u0026nbsp;\u003c\/p\u003e","brand":"ODYSSEY","offers":[{"title":"Default Title","offer_id":57418900537724,"sku":"PBS_ODYS079058","price":39.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/3444\/9318\/files\/ODSY-Optisjustnsert-RoadGravel-web_2048x2048_02abd160-c49d-4606-82c9-09916dc7b70a.webp?v=1788938143","url":"https:\/\/probikeshop-irl.com\/products\/anti-pinch-flat-odyssey-optis-insert-700x25-30-without-valve","provider":"Probikeshop","version":"1.0","type":"link"}