--- product_id: 355809067 title: "Heavy Duty 2 mm Motorcycle Inner Tube 80/100×21 — Butyl Rubber, tr‑4 Valve, Extra Thick Replacement Tube" brand: "tusk" price: "$51.01" currency: USD in_stock: true reviews_count: 8 category: "Tusk" url: https://www.desertcart.us/products/355809067-heavy-duty-2-mm-motorcycle-inner-tube-80-100-21 store_origin: US region: United States of America --- # Premium butyl rubber for superior air retention & heat resistance Centered TR-4 valve for easy inflation & rim compatibility 2 mm extra thick wall for max puncture resistance Heavy Duty 2 mm Motorcycle Inner Tube 80/100×21 — Butyl Rubber, tr‑4 Valve, Extra Thick Replacement Tube **Brand:** tusk **Price:** $51.01 **Availability:** ✅ In Stock ## Summary > 🛞 Ride tougher, ride longer — never get sidelined by flats again! ## Quick Answers - **What is this?** Heavy Duty 2 mm Motorcycle Inner Tube 80/100×21 — Butyl Rubber, tr‑4 Valve, Extra Thick Replacement Tube by tusk - **How much does it cost?** $51.01 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/355809067-heavy-duty-2-mm-motorcycle-inner-tube-80-100-21) ## Best For - tusk enthusiasts ## Why This Product - Trusted tusk brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision Fit:** Engineered 80/100×21 sizing perfectly matches common 21" front tires - • **Trail-Ready Backup:** Ideal for daily repairs or as a trusted spare on your off-road adventures - • **Effortless Inflation:** Centered TR-4 valve stem fits most rims for quick, hassle-free pumping - • **Unmatched Durability:** 2 mm thick walls shield against flats and abrasions on rugged trails - • **Long-Lasting Performance:** Premium butyl rubber locks in air and resists aging for reliable rides ## Overview The Tusk Heavy Duty 2 mm Motorcycle Inner Tube (80/100×21) is crafted from premium butyl rubber with an extra-thick wall to provide superior puncture resistance and air retention. Featuring a centered TR-4 valve stem for compatibility with most rims, this tube is engineered for common 21" front tires, making it the perfect durable upgrade or reliable spare for trail and street riders alike. ## Description The Tusk heavy duty 2 mm motorcycle inner tube in size 80/100×21 is built for riders who want more durability than typical stock tubes. The added thickness helps resist pinch flats and abrasion when riding challenging terrain or over sharp edges. Made from quality butyl rubber, this tube balances flexibility with strong air retention and longevity. The TR‑4 valve stem is centered for compatibility with most rims, ensuring dependable access for inflation. Whether you're repairing a damaged tube or carrying a trusted spare for off‑road rides, this tube is ready. Its 80/100×21 specification fits many 21" front tires used in dual sport and enduro setups. Important note: Always verify your tire and rim compatibility before installation and ensure there is no rim damage or sharp edges. Use this tube for trail, street, or mixed terrain riding. It makes a practical upgrade over standard tubes, and a reliable option to carry in your toolkit. Review: Nice and thick inner tube - Used on a Rawr Mantis x. Fit perfectly, feels durable. Review: Fit my motorcycle 👍👍 - Great product!!! Thickness, air retention, Value for money!! ## Features - Extra Thick 2 mm Wall — provides stronger puncture resistance versus standard tubes - Premium Butyl Rubber — good air retention and resistance to aging / heat - Centered TR-4 Valve Stem — fits common rim designs and allows easy inflation - Precise 80/100×21 Sizing — engineered to match common 21" front tire dimensions - Reliable Backup or Replacement — ideal for trail use, daily repair kit, or upgrade ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09DR54XN9 | | Best Sellers Rank | #3,815 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #22 in Bike Tubes | | Bike Type | Motorcycle | | Brand | TUSK | | Brand Name | TUSK | | Compatible Tire Width Maximum | 80 Millimeters | | Compatible Tire Width Minimum | 80 Millimeters | | Customer Reviews | 4.6 out of 5 stars 785 Reviews | | Item Width | 80 Millimeters | | Manufacturer | Tusk | | Manufacturer Part Number | 193-649-0001 | | Material | Rubber | | Material Type | Rubber | | Size | 80/100x21 | | Unit Count | 1.0 Count | | Valve Length | 40 Millimeters | | Valve Type | TR-4 valve stem | | Wheel Size | 14 Inches | ## Product Details - **Brand:** TUSK - **Item Width:** 80 Millimeters - **Material:** Rubber - **Valve Type:** TR-4 valve stem - **Wheel Size:** 14 Inches ## Images ![Heavy Duty 2 mm Motorcycle Inner Tube 80/100×21 — Butyl Rubber, tr‑4 Valve, Extra Thick Replacement Tube - Image 1](https://m.media-amazon.com/images/I/51QH1vfqg2L.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Nice and thick inner tube *by D***A on March 28, 2026* Used on a Rawr Mantis x. Fit perfectly, feels durable. ### ⭐⭐⭐⭐⭐ Fit my motorcycle 👍👍 *by W***R on March 12, 2026* Great product!!! Thickness, air retention, Value for money!! ### ⭐⭐⭐⭐⭐ Good Quality ,cheap , job done *by S***S on November 3, 2025* Came with hardware good thick tube doesn’t leak but the stem could be higher quality for the thickness. It is a super heavy tube fyi obviously there will be trade off for durability and I beat the soul of of my tubes, they hold up just fine next to my Michelin 3mm --- ## 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.us/products/355809067-heavy-duty-2-mm-motorcycle-inner-tube-80-100-21](https://www.desertcart.us/products/355809067-heavy-duty-2-mm-motorcycle-inner-tube-80-100-21) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-04-26*