{"product_id":"ultraverse-20x4-0-heavy-duty-inner-tubes-2-pack","title":"Ultraverse 20x4.0 Heavy-Duty Inner Tubes — 2-Pack","description":"\u003cp\u003eHeavy-duty 20x4.0 inner tubes built from thick butyl rubber — substantially more puncture-resistant than the thin stock tubes that come on most fat-tire e-bikes.\u003c\/p\u003e\u003cp\u003eSize: 20 x 3.5\/4.0 (89\/102-406). Schrader valve (AV32, 32mm). Fits any 20x4.0 fat tire. Pairs with the Ultraverse 20x4.0 Fat Tire.\u003c\/p\u003e\u003cp\u003eSold as a matched pair. Keep the second one as a spare — flats happen, and having a tube on hand beats waiting on shipping.\u003c\/p\u003e","brand":"AetherShift","offers":[{"title":"2-Pack","offer_id":67580931113142,"sku":"ULTRA-20X40-TUBE-2","price":46.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0731\/0455\/6214\/files\/410euc-DNIL._SL500.jpg?v=1791135061","url":"https:\/\/aethershift.myshopify.com\/products\/ultraverse-20x4-0-heavy-duty-inner-tubes-2-pack","provider":"AetherShift Electric Bike \u0026 Scooter Solutions","version":"1.0","type":"link"}