{"product_id":"eclipse-gravel-tube-622-x-30-45mm-ultra","title":"Camera d’aria Eclipse Ultra Gravel - 622 x 30\/45mm","description":"\u003cp\u003eAn ultralight TPU gravel tube built for race day and weight-obsessed bikepacking setups. \u003cspan style=\"text-decoration: underline;\"\u003eMade in Germany\u003c\/span\u003e with a patented all-aluminum valve and a patented end-to-end welding process.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003ePerché funziona\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e46–48 g, depending on valve length.\u003c\/strong\u003e Lighter than the Performance gravel tube and a small fraction of a butyl tube's weight. The saving is rotational, so the gain in acceleration and handling is bigger than the gram count suggests.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThinner wall, same engineering.\u003c\/strong\u003e Ultra uses a lower-gauge TPU film than the Performance line — built for riders who optimize for weight first. Best paired with clean rim tape and tires that aren't shredded.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHolds pressure like it means it.\u003c\/strong\u003e TPU doesn't creep at gravel pressures the way butyl does. Consistent feel for hours, no gradual sag mid-event.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePatented all-aluminum valve with removable core.\u003c\/strong\u003e If the valve core ever works loose or leaks — 60 seconds and a valve tool to fix. No new tube needed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEnd-to-end welded, not spliced.\u003c\/strong\u003e Eclipse's patented welding process eliminates the seam junction — historically the most common failure point in TPU tubes. Backed by tight in-house QC before anything ships.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePacks to nothing.\u003c\/strong\u003e The smallest gravel spare we make. Fits anywhere.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e100% recyclable.\u003c\/strong\u003e When it finally wears out, it doesn't go to landfill.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eSpecifiche\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize (ETRTO)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e622 × 30–45 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMateriale\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTPU (thermoplastic polyurethane), Ultra-light gauge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eValve\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePresta, all-aluminum, removable core\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMade in\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRecyclable\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eWeight by valve length:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eValve\u003c\/th\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e40 mm\u003c\/td\u003e\n\u003ctd\u003e46 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e70 mm\u003c\/td\u003e\n\u003ctd\u003e48 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch3\u003eWhich valve length do I need?\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e40 mm\u003c\/strong\u003e — gravel and adventure rims with a shallow-to-mid rim bed up to 25mm height.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e70 mm\u003c\/strong\u003e — deeper\/aero gravel rims and any rim deeper than ~25 mm. If your rim depth is close to a boundary, go longer.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eIdeale per\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGravel race day and time trial — when every gram counts\u003c\/li\u003e\n\u003cli\u003eWeight-focused bikepacking spares\u003c\/li\u003e\n\u003cli\u003eRiders with clean rim tape, well-maintained tires, and a gram-conscious build\u003c\/li\u003e\n\u003cli\u003ePair with the Performance Gravel tube as a daily driver\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eInstalling a TPU tube — the short version\u003c\/h3\u003e\n\u003cp\u003eTPU installs differently from butyl. Four things matter:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStart with zero air.\u003c\/strong\u003e Insert the valve completely flat — no pre-inflation. This is the single most common installation mistake.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNo tire levers on the second bead.\u003c\/strong\u003e Mount by hand. Levers pinch TPU in a way they don't pinch butyl.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSoft-inflate to 0.3 bar (5 psi) first.\u003c\/strong\u003e Before closing the second bead fully, give it a small amount of air to seat the tube without folds or twists.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInflate in steps.\u003c\/strong\u003e Go up in 1 bar (14 psi) increments, not all at once. Before you hit full pressure, squeeze the sidewalls around the whole wheel to check the tube isn't peeking out anywhere.\u003c\/p\u003e\n\u003cp\u003eThat's it. Once it's seated, it behaves like any other tube.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eWhat makes Eclipse different\u003c\/h3\u003e\n\u003cp\u003eEclipse pioneered TPU inner tubes in 2011 — before the category existed commercially. The patented all-aluminum valve and patented end-to-end welding process aren't marketing language; they're engineering decisions made to solve real failure modes. Every tube is QC-checked before it ships.\u003c\/p\u003e","brand":"Eclipse","offers":[{"title":"40mm - 46g","offer_id":49187370860870,"sku":"ECGR4540U","price":23.95,"currency_code":"EUR","in_stock":true},{"title":"70mm - 48g","offer_id":49187370893638,"sku":"ECGR4570U","price":23.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0811\/0673\/1334\/files\/Eclipse_Pumped_Ventil_4cm_Glatt.png?v=1775308654","url":"https:\/\/eclipse.bike\/it\/products\/eclipse-gravel-tube-622-x-30-45mm-ultra","provider":"Eclipse Tubes","version":"1.0","type":"link"}