{"product_id":"schwalbe-av4-size-16-18-schrader-valve-tube-for-folding-bikes","title":"Schwalbe AV4 Size 16\/18 Schrader Valve Tube for Folding Bikes","description":"Schwalbe Tube AV4 Compatible with most folding bike tires Valve: AV Schrader Valve length: 40mm This inner tube weighs in at just 85g and comes with a Schrader \/ car type valve - 20g (almost 25%) lighter than the Brompton standard inner tube. The AV4 inner tube fits ETRTO \/ ISO tyre sizes as shown below: 37-340 - 16 x 1 3\/8\" and 400 x 35A 28-349 - 16 x 1 1\/8\" 37-349 - 16 x 1 3\/8\" 28-355 - 18 x 1 1\/8\" 35-355 - 18 x 1.35\" 35-349 - 16 x 1.35\"  (The ETRTO size is the most accurate way of selecting the correct inner tube and can be found on the side of the tyre)","brand":"Schwalbe","offers":[{"title":"Default","offer_id":48571487977626,"sku":"SBTUAV4a","price":250.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0579\/5463\/1834\/files\/019f07a8afb976bf94780c21cdb1ee0b.jpg?v=1782814405","url":"https:\/\/www.strigabikes.com\/products\/schwalbe-av4-size-16-18-schrader-valve-tube-for-folding-bikes","provider":"Striga Bikes","version":"1.0","type":"link"}