--- product_id: 562193188 title: "18x8.50-8 18x9.50-8 Inner Tubes with TR-13 Straight Valve Stem, 2 Pack" brand: "sportyouth" price: "₨2453" currency: SCR in_stock: true reviews_count: 9 category: "Sportyouth" url: https://www.desertcart.sc/products/562193188-18x8-50-8-18x9-50-8-inner-tubes-with-tr store_origin: SC region: Seychelles --- # 4X thicker premium rubber Fits 18x8.50-8 & 18x9.50-8 tires Quick install, no special tools 18x8.50-8 18x9.50-8 Inner Tubes with TR-13 Straight Valve Stem, 2 Pack **Brand:** sportyouth **Price:** ₨2453 **Availability:** ✅ In Stock ## Summary > 🛠️ Upgrade your ride, save your wallet—inner tubes that keep you moving! ## Quick Answers - **What is this?** 18x8.50-8 18x9.50-8 Inner Tubes with TR-13 Straight Valve Stem, 2 Pack by sportyouth - **How much does it cost?** ₨2453 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/562193188-18x8-50-8-18x9-50-8-inner-tubes-with-tr) ## Best For - sportyouth enthusiasts ## Why This Product - Trusted sportyouth brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Convenient 2-Pack Value:** Double the reliability with two premium tubes, ready to keep your equipment rolling smoothly. - • **Optimized Pressure Control:** Max 30 PSI with manual pump ensures safe inflation and peak performance without risk of overinflation. - • **Cost-Effective Tire Revival:** Replace inner tubes, not entire tires—save money and extend your tire’s life with minimal effort. - • **Universal Fit for Versatile Use:** Seamlessly compatible with golf carts, ATVs, lawn mowers, and more—one tube, endless possibilities. - • **Built to Last with Heavy-Duty Rubber:** 4-ply construction delivers superior airtightness, shock absorption, and aging resistance for year-round durability. ## Overview This 2-pack of SPORTYOUTH 18x8.50-8 and 18x9.50-8 inner tubes features TR-13 straight valve stems and heavy-duty 4-ply rubber construction. Designed for a wide range of off-road equipment including golf carts, ATVs, and lawn mowers, these tubes offer superior airtightness and shock absorption. With a max pressure of 30 PSI and easy installation, they provide a cost-effective solution to extend tire life and maintain peak performance across all seasons. ## Description desertcart.com: 18x8.50-8 18x9.50-8 Inner Tubes with TR-13 Straight Valve Stem, 2 Pack | Heavy Duty Replacement Tire Inner Tubes for Lawn Mower, Wheelbarrow, Golf Cart, Tractor, Snow Blower, Trailer, ATVs, Go Kart : Patio, Lawn & Garden Review: Good Quality Tube - Seems to be a high quality tube. It was not very easy, but I was able to get it into the tire of my John Deer LX255 mower and it is holding air. Review: Had to return one of the inner tubes. - Had to return one of the inner tubes because it looked like it had been used, and at the base of the valve stem was cracked. The other one worked perfect. ## Features - PERFECT FIT - Replacement inner tube with TR-13 straight valve stem fits 18x8.50-8" and 18x9.50-8" tires (8" rims, 18" OD). Also called as 18x6.50-8, 18x7.50, 18x8.5-8, 18x9.5-8 (Please check the size before buy) - WIDE COMPATIBILITY - Works perfectly with golf carts, ATVs, Quad 4 Wheelers, lawn mowers, wheelbarrows, garden tractors, dollies, trolleys, tillers, go-karts, garden / utility / flat carts, generators, pressure washers, air compressors, wood chippers and more. One tube, many uses around your yard and workshop - HEAVY DUTY - Made from premium rubber, 4X thicker than standard tubes. Delivers superior airtightness, shock absorption, and aging resistance – durable and built for home, professional, and industrial use - COST EFFECTIVE – NO NEW WHOLE TIRE NEEDED! When your tire goes flat, simply replace the inner tubes – not the entire tire. This extends existing tire's life and and gives you a budget‑friendly fix. Install in minutes with no special tools - PACKAGE & NOTE – Includes 2 tubes (18x8.5/9.5-8", TR13 straight stem). Max 30 PSI, use a manual pump only to avoid overinflation. Not for road/highway use. Perfect for off‑road yard applications. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CH9PD9MR | | Automotive Fit Type | Universal Fit | | Best Sellers Rank | #3,322 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #9 in Wheelbarrow Replacement Parts | | Brand | SPORTYOUTH | | Brand Name | SPORTYOUTH | | Construction Type | Rubber construction | | Customer Reviews | 4.4 out of 5 stars 1,314 Reviews | | Item Diameter | 18 inches | | Item Highlight | Heavy Duty Replacement Tire Inner Tubes for Lawn Mower, Wheelbarrow, Golf Cart, Tractor, Snow Blower, Trailer, ATVs, Go Kart | | Load Capacity | 100 pounds | | Load Index | 78 | | Manufacturer | SPORTYOUTH | | Manufacturer Part Number | A-IT | | Maximum Pressure | 30 psi | | Number of Packs | 2 | | Ply | 4-Ply | | Rim Size | 8 inches | | Rim Width | 8 inches | | Seasons | Fall, Spring, Summer, Winter | | Section Width | 8.5 inches | | Size | 18x8.50/9.50-8 | | Tire Aspect Ratio | 0.78 millimeters | | Tire Diameter | 18 inches | | Tread Depth | 2.5 millimeters | | UPC | 810032071684 | | Unit Count | 2 Count | | Vehicle Tire ISO Metric Size Description | 18x8.50/9.50-8R | ## Product Details - **Brand:** SPORTYOUTH - **Load Capacity:** 100 Pounds - **Load Index:** 78 - **Maximum Pressure:** 30 Pound per Square Inch - **Rim Size:** 8 Inches - **Rim Width:** 8 Inches - **Section Width:** 8.5 Inches - **Size:** 18x8.50/9.50-8 - **Tire Aspect Ratio:** 0.78 Millimeters - **Tread Depth:** 2.5 Millimeters ## Images ![18x8.50-8 18x9.50-8 Inner Tubes with TR-13 Straight Valve Stem, 2 Pack - Image 1](https://m.media-amazon.com/images/I/61aHOWI+cgL.jpg) ![18x8.50-8 18x9.50-8 Inner Tubes with TR-13 Straight Valve Stem, 2 Pack - Image 2](https://m.media-amazon.com/images/I/71lbcYkz+9L.jpg) ![18x8.50-8 18x9.50-8 Inner Tubes with TR-13 Straight Valve Stem, 2 Pack - Image 3](https://m.media-amazon.com/images/I/71hfhIxt9ML.jpg) ![18x8.50-8 18x9.50-8 Inner Tubes with TR-13 Straight Valve Stem, 2 Pack - Image 4](https://m.media-amazon.com/images/I/81X77blG5cL.jpg) ![18x8.50-8 18x9.50-8 Inner Tubes with TR-13 Straight Valve Stem, 2 Pack - Image 5](https://m.media-amazon.com/images/I/81NfS-gGpuL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good Quality Tube *by R***D on June 28, 2026* Seems to be a high quality tube. It was not very easy, but I was able to get it into the tire of my John Deer LX255 mower and it is holding air. ### ⭐⭐⭐⭐⭐ Had to return one of the inner tubes. *by T***Y on October 14, 2024* Had to return one of the inner tubes because it looked like it had been used, and at the base of the valve stem was cracked. The other one worked perfect. ### ⭐⭐⭐⭐⭐ Great item *by K***S on July 23, 2026* Just what I needed --- ## 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.sc/products/562193188-18x8-50-8-18x9-50-8-inner-tubes-with-tr](https://www.desertcart.sc/products/562193188-18x8-50-8-18x9-50-8-inner-tubes-with-tr) --- *Product available on Desertcart Seychelles* *Store origin: SC* *Last updated: 2026-09-28*