--- product_id: 418517433 title: "2 Pack 20x4.0 Fat Tire Bike Inner Tubes for 20x4 Inch Electric Bike | Premium Butyl Rubber, Durable & Reliable, Schrader Valve, Replacement Tire Tubes for 20 x 4.0 Inch Ebike and Mountain Bicycle" brand: "senaro" price: "¥11289" currency: JPY in_stock: true category: "Senaro" url: https://www.desertcart.jp/products/418517433-2-pack-20x4-0-fat-tire-bike-inner-tubes-20x4 store_origin: JP region: Japan --- # Premium butyl rubber durability 20-inch wheel size 35mm Schrader valve for quick inflation 2 Pack 20x4.0 Fat Tire Bike Inner Tubes for 20x4 Inch Electric Bike | Premium Butyl Rubber, Durable & Reliable, Schrader Valve, Replacement Tire Tubes for 20 x 4.0 Inch Ebike and Mountain Bicycle **Brand:** senaro **Price:** ¥11289 **Availability:** ✅ In Stock ## Summary > 🚴‍♂️ Ride Fat, Ride Fearless – Tubes That Keep Up with Your Adventure! ## Quick Answers - **What is this?** 2 Pack 20x4.0 Fat Tire Bike Inner Tubes for 20x4 Inch Electric Bike | Premium Butyl Rubber, Durable & Reliable, Schrader Valve, Replacement Tire Tubes for 20 x 4.0 Inch Ebike and Mountain Bicycle by senaro - **How much does it cost?** ¥11289 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/418517433-2-pack-20x4-0-fat-tire-bike-inner-tubes-20x4) ## Best For - senaro enthusiasts ## Why This Product - Trusted senaro brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Crafted from premium butyl rubber, these tubes offer superior puncture resistance and longevity, keeping you rolling longer with less downtime. - • **Double the Value:** Two high-quality inner tubes in one pack mean you're always prepared for unexpected flats—because every ride deserves a backup plan. - • **Effortless Inflation:** Equipped with a 35mm Schrader valve, compatible with standard pumps for fast, hassle-free air top-ups wherever your ride takes you. - • **Quality Assurance Tips:** Pre-install inflation and water test instructions included to guarantee you receive flawless tubes, ensuring peace of mind before hitting the trail. - • **Tailored Fit for Fat Tires:** Specifically engineered for 20x4.0 inch fat tire ebikes to ensure a perfect, secure fit—no more frustrating pops from ill-fitting tubes. ## Overview This 2-pack of 20x4.0 inch fat tire inner tubes is designed specifically for electric and mountain fat bikes, featuring durable premium butyl rubber and 35mm Schrader valves for easy inflation. Engineered for a perfect fit and long-lasting performance, these tubes come with quality assurance tips to ensure reliability on every ride. ## Description desertcart.com : Senaro 2 Pack 20x4.0 Fat Tire Bike Inner Tubes for 20x4 Inch Electric Bike | Premium Butyl Rubber, Durable & Reliable, Schrader Valve, Replacement Tire Tubes for 20 x 4.0 Inch Ebike and Mountain Bicycle : Sports & Outdoors ## Features - Perfectly Fit: Our bicycle inner tubes fit 20 inches Fat Tire Bike Ebike Electric Bicycle. We designed the tube width specially for 20x4.0 Ebike. Others tube width fit for 20x3.5 - 4.0 bike. It is easily popped to use the tube with not enough width. The width of our inner tubes is more suitable and durable. - Valve type & length: Schrader Valve Stem for easy inflation (Regular valves); 35mm (1.38 inches) with valve core cap. Wheel Size: 20 inches - Durable: Our Bicycle tubes are made of Premium butyl rubber, so it'll durable than average bicycle inner tubes. - What You Get: 2 Pack 20x4" fat tire tubes - Tips: Before installing the inner tube, inflate a little air into the tube. Then put the inner tube into the water for inspection, if there are bubbles, it means that it has been damaged during shipping, you could contact us. Inspect the inside of the tire and rim for any debris sharp objects. - How To Choose Your Right Size: Before ordering, please check diameter and width 20X4.0 on your bike tire wall to make sure you get the right size. Or you could check your existing tube size to ensure our tube is right. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09SGYTGLZ | | Best Sellers Rank | #1,740 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #11 in Bike Tubes | | Bike Type | Fat Bike | | Brand Name | Senaro | | Compatible Tire Width Maximum | 4 inches | | Compatible Tire Width Minimum | 4 inches | | Customer Reviews | 4.5 4.5 out of 5 stars (1,903) | | Included Components | 2 Pack 20x4.0 Fat Tire Bike Inner Tubes for 20x4 Inch Electric Bike | | Item Diameter | 20 inches | | Item Type Name | 20x4 bike tubes | | Item Weight | 0.79 kg | | Item Width | 4 inches | | Manufacturer | Beauty Life Designs | | Manufacturer Part Number | Beautylife-060 | | Material Type | Butyl Rubber | | Model Number | 20 inch | | Number of Items | 2 | | Size | 2 Pack with Schrader Valve | | UPC | 750958778734 | | Unit Count | 2 Count | | Valve Length | 1.38 inches | | Valve Type | Schrader | | Warranty Description | NO | | Wheel Size | 20 inches | ## Product Details - **Brand:** Senaro - **Item Diameter:** 20 inches - **Material:** Butyl Rubber - **Valve Type:** Schrader - **Wheel Size:** 20 inches ## Images ![2 Pack 20x4.0 Fat Tire Bike Inner Tubes for 20x4 Inch Electric Bike | Premium Butyl Rubber, Durable & Reliable, Schrader Valve, Replacement Tire Tubes for 20 x 4.0 Inch Ebike and Mountain Bicycle - Image 1](https://m.media-amazon.com/images/I/7134+MXgEkL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Does this fit a Radpower Radrunner?** A: When it comes to tubes I wouldnt see if it works on a brand of e bike but just make sure it fits your rim and tire size. I bought this for my brother who has juiced scorpion and a tire size of 20x4. Hopefully that helps. **Q: what psi are the inner tubes rated for?** A: Not 30psi….I just put one in my tire and inflated to 28psi and 3 minutes later, KABOOM! Tube blew out, scared the $¢!T out of the cats!!! **Q: What are tire levers used for?** A: They are little levers that are used for getting tires off a rim. A set of tire levers are one of the cheapest and most essential tools of cycling equipment and everyone should carry them. To use them, insert flat end between rim and rubber tire. Lift rubber tire up using leverage off rim and bring rubber tire edge off and away from rim edge. Drag lever along rim edge to bring tire off rim further. Careful not to pinch tube in this process. The opposite end of the lever is for locking it on to a spoke. **Q: Has anyone used these for their Super73? If so, how’d it work out? :)** A: I bought these tubes for my brothers juiced scorpion which uses 20x4 tires and they worked fine. Hopefully that helps you out. ## Frequently Bought Together - 2 Pack 20x4 Fat Tire Bike Inner Tubes with Schrader Valve, 20 x 4.0 Premium Butyl Rubber Inner Tube for 20 inch Ebike Electric Bicycle - BALINGE E Bike 20/26x4.0 Fat tire 20 x 4 Fat tire 20x4 Bike tire 1 Pack Heavy Duty High-Performance Wear-Resistant E-Bike Mountain Snow Bike Tire ，Fat Bike Tires，Brown Wall/White Wall/Black - AGPTEK Bike Brake Pads, High-Performance Brake Pads, Disc Brake Pads & Spring (Semi-Metallic&Resin) for Mountain Bike Disc Brakes,Bike Pads Compatible with TRP Tektro Shimano Deore Br --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/418517433-2-pack-20x4-0-fat-tire-bike-inner-tubes-20x4](https://www.desertcart.jp/products/418517433-2-pack-20x4-0-fat-tire-bike-inner-tubes-20x4) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-08-28*