{"product_id":"walshen-8-5-x-2-bent-valve-inner-tube-50-75-6-1-rear-scooter-replacement-thick-butyl-90-stem","title":"Walshen 8.5 x 2 Bent Valve Inner Tube (50\/75-6.1) — Rear Scooter Replacement, Thick Butyl 90° Stem","description":"\u003cp\u003e\u003cstrong\u003eWalshen 8.5 x 2 bent-valve inner tube (50\/75-6.1) is a thicker butyl rubber replacement tube designed for rear wheels on many 8.5-inch electric scooters, with a 90° bent stem to simplify inflation.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your scooter rear tire needs a pneumatic replacement that fits 8.5-inch wheels (50\/75-6.1), this Walshen inner tube is built to match common models like Gotrax and Xiaomi. It uses a hollow, thicker butyl construction for improved air retention, a 90° bent valve stem for easier access, and a tread profile intended to maintain traction. Before installing, confirm the valve orientation on your wheel matches the bent-stem design to ensure compatibility.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the bent 90° valve make inflation and maintenance easier?\u003c\/h3\u003e\n\u003cp\u003eThe 90° bent stem positions the valve away from tight wheel wells and frames, giving you better access when adding air or checking pressure. That angle reduces the need to remove components or awkwardly reach into the hub area. It’s especially helpful on scooters with limited clearance around the wheel.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eEasier pump access without removing the wheel\u003c\/li\u003e\n  \u003cli\u003eLess risk of bending the valve during inflation\u003c\/li\u003e\n  \u003cli\u003eWorks with standard bike pumps and portable compressors\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this tube fit my Gotrax or Xiaomi rear wheel?\u003c\/h3\u003e\n\u003cp\u003eThis inner tube is sized 50\/75-6.1 (commonly labeled 8.5 x 2), which matches many 8.5-inch rear scooter wheels from brands like Gotrax and Xiaomi. However, compatibility depends on valve orientation and exact rim dimensions, so visually confirm that your scooter uses a rear bent-stem valve before purchasing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for 8.5 x 2 \/ 50\/75-6.1 rear wheels\u003c\/li\u003e\n  \u003cli\u003eCompatible with many Gotrax GXL V2, XR, Xiaomi and similar scooters\u003c\/li\u003e\n  \u003cli\u003eVerify your current tube’s valve stem is bent and faces outward\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat performance differences does a thicker butyl tube deliver?\u003c\/h3\u003e\n\u003cp\u003eWalshen uses a thicker butyl formulation to reduce air loss and extend time between inflations. Thicker walls also resist punctures and pinch flats better than very thin tubes, while the hollow structure preserves flexibility for steering and braking response. Expect improved air retention and a slightly firmer ride compared with thinner replacement tubes.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eApproximately 20% better air retention than standard thin tubes\u003c\/li\u003e\n  \u003cli\u003eImproved puncture and pinch-flat resistance\u003c\/li\u003e\n  \u003cli\u003eMaintains ride flexibility for predictable handling\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the tube affect grip and braking on the rear wheel?\u003c\/h3\u003e\n\u003cp\u003eThis tube is intended for pneumatic tires with an anti-slip tread, so when paired with the correct outer tire it helps maintain traction under acceleration and braking. Pneumatic rear setups typically offer better control than solid tires, especially over uneven surfaces. Proper inflation will preserve tread contact and braking stability.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWorks with anti-slip tread tyres for reliable grip\u003c\/li\u003e\n  \u003cli\u003eBetter shock absorption than solid wheels for uneven ground\u003c\/li\u003e\n  \u003cli\u003eStable braking feel when maintained at recommended pressure\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Riders who own an electric scooter with an 8.5-inch rear wheel (50\/75-6.1) and need a bent-stem valve replacement for easier inflation and improved air retention. This set is useful for commuters, casual riders, and anyone replacing a punctured or worn inner tube on compatible Gotrax, Xiaomi, or similar scooter models. Make sure your current wheel accepts a 90° bent valve before ordering to ensure a straightforward swap.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this tube fit all 8.5-inch scooter rear wheels?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It fits many 8.5 x 2 (50\/75-6.1) rear wheels, but confirm your wheel accepts a 90° bent valve before buying.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use a standard pump with the bent valve?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—standard bike pumps and portable compressors work; the 90° stem improves access during inflation.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Walshen","offers":[{"title":"Default Title","offer_id":48086968074398,"sku":"B0CX8SVF2W","price":31.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/walshen-front-packaging-8-5-bent-valve.jpg?v=1785911156","url":"https:\/\/northtrailauto.ca\/products\/walshen-8-5-x-2-bent-valve-inner-tube-50-75-6-1-rear-scooter-replacement-thick-butyl-90-stem","provider":"North Trail Auto","version":"1.0","type":"link"}