--- product_id: 426466488 title: "Continental Race 28 700x20-25c Bicycle Inner Tubes - 42mm Long Presta Valve - 2 Pack" brand: "continental" price: "$47.04" currency: USD in_stock: true reviews_count: 13 category: "Continental" url: https://www.desertcart.us/products/426466488-continental-race-28-700x20-25c-bicycle-inner-tubes-42mm-long store_origin: US region: United States of America --- # 42mm Presta valve length Seamless vulcanized butyl rubber Fits 28-inch (700c) racing wheels Continental Race 28 700x20-25c Bicycle Inner Tubes - 42mm Long Presta Valve - 2 Pack **Brand:** continental **Price:** $47.04 **Availability:** ✅ In Stock ## Summary > 🚴‍♀️ Ride Fast, Ride Confident: The Pro’s Choice in Inner Tubes! ## Quick Answers - **What is this?** Continental Race 28 700x20-25c Bicycle Inner Tubes - 42mm Long Presta Valve - 2 Pack by continental - **How much does it cost?** $47.04 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/426466488-continental-race-28-700x20-25c-bicycle-inner-tubes-42mm-long) ## Best For - continental enthusiasts ## Why This Product - Trusted continental brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision Valve Fit:** 42mm Presta valve engineered for rims ≤30mm depth, ensuring perfect compatibility and hassle-free inflation. - • **Lightweight & Reliable:** Crafted from premium butyl rubber, these tubes balance featherlight weight with long-lasting air retention—ride longer, worry less. - • **Race-Ready Compatibility:** Optimized for 28-inch wheels with 20-25mm tire widths—ideal for the serious road cyclist chasing speed and efficiency. - • **Authenticity & Protection:** Individually boxed in original Continental packaging, ensuring genuine quality and pristine condition on arrival. - • **Durability Meets Performance:** Seamless, mold-cured vulcanization guarantees uniform roundness and superior puncture resistance for a smooth, reliable ride. ## Overview Continental Race 28 700x20-25c Inner Tubes feature a 42mm Presta valve designed for narrow racing tires on 28-inch wheels. Made from seamless, vulcanized butyl rubber, they deliver exceptional puncture resistance and uniform roundness for a smooth, durable ride. Lightweight yet robust, these tubes come in a 2-pack with authentic Continental packaging and a 2-year limited warranty, making them the trusted upgrade for performance-driven cyclists. ## Description Continental Race 28" 700x20-25c Bicycle Inner Tubes -42mm Long Presta Valve (Pack of 2 Tubes )- Continental bike tubes are constructed of durable butyl rubber and are 100 percent inspected to ensure quality. The tubes are seamless and vulcanized for uniform roundness and improved reliability. Material: Butyl tubes with renowned Continental quality - Durability: Each and every inner tube passes a stringent 100% quality control inspection - Design: Seamless construction, with a mold-cured vulcanization, to ensure uniform roundness and give a smooth ride and handling. Review: Continental quality and value. - Have used Continental tires and tubes for a few years now switching away from Michelin. Our rides are mostly city urban streets and bike paths and regularly got flats when running Michelin tires and tubes. After switching to Continental tires (Gran Prix 4 Season) and tubes. 🤞🏻🤞🏻🤞🏻no flats. These medium weight tubes and their “supersonic” lightweight tubes perform perfectly. Note these use are in the 70 gram weight range while the supersonic tubes are 50ish grams. Just a bit heavier than those finicky TPU tubes which failed within a month if not right out of the box. These tubes hold air for days if not a week or two. Nice ride and durable. Make sure to order the correct stem length to fit your wheel rims. Toss the valve stem nut never thought they would rattle until I found out it was the reason my front wheel rattled while rolling slow enough to hear it. Go figure Review: Fits my bike and works well. No issue - Bought this as a spare for my road bike. It's fairly cheap and easy to install. The valves could get worn but I think it's after several years. It's probably a few dollars cheaper buying it online versus at the store ## Features - Valve Lenght: 42mm Presta Valve - Suitable for Rims with a Presta Valve Drill Hole and Rimdepth of 30mm (1 3/16″) or Less - Wheel Size Compatibility: 28-inch (700c) wheels – Only Compatible with 28“ Wheels. - Rim Width Compa􀆟bility: 20mm to 25mm (3/4“ to 1“). Perfect for Racing Bikes Requiring Narrow Tire Tubes with Short Valve Stems. - Packaging: Each Inner Tube Comes Individually Packed in its Original Continental Retail Box, Ensuring Authen􀆟city and Protection During Shipping. - Premium Construction: Features Seamless Construction with Mold-Cured Vulcaniza􀆟on, Guaranteeing Uniform Roundness and Enhanced Puncture Resistance for a Smoother, more Reliable Ride. - Lightweight Construction: Race 28 Tubes are Lightweight and Require Precise Installation and Consistent Tire Pressure Maintenance ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09X8K1WVN | | Best Sellers Rank | #1,651 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #8 in Bike Tubes | | Bike Type | Road Bike | | Brand | Continental | | Brand Name | Continental | | Compatible Tire Width Maximum | 25 Millimeters | | Compatible Tire Width Minimum | 20 Millimeters | | Customer Reviews | 4.4 out of 5 stars 1,281 Reviews | | Included Components | 2x Continental Tubes, Presta Valve | | Item Diameter | 28 Inches | | Item Type Name | bicycle tube | | Item Weight | 0.24 Kilograms | | Item Width | 28 Millimeters | | Manufacturer | Continental | | Manufacturer Part Number | 303941060394 | | Material | Butyl Rubber | | Material Type | Butyl Rubber | | Model Number | 303941060394 | | Size | 700 x 20 - 25mm | | UPC | 303941060394 | | Unit Count | 2.0 Count | | Valve Length | 42 Millimeters | | Valve Type | Presta | | Warranty Description | 2 Year Limited Warranty | | Wheel Size | 28 Inches | ## Product Details - **Brand:** Continental - **Item Diameter:** 28 Inches - **Material:** Butyl Rubber - **Valve Type:** Presta - **Wheel Size:** 28 Inches ## Images ![Continental Race 28 700x20-25c Bicycle Inner Tubes - 42mm Long Presta Valve - 2 Pack - Image 1](https://m.media-amazon.com/images/I/81idr6tR4IL.jpg) ![Continental Race 28 700x20-25c Bicycle Inner Tubes - 42mm Long Presta Valve - 2 Pack - Image 2](https://m.media-amazon.com/images/I/713tGOLdbiL.jpg) ![Continental Race 28 700x20-25c Bicycle Inner Tubes - 42mm Long Presta Valve - 2 Pack - Image 3](https://m.media-amazon.com/images/I/91U6HEzryjL.jpg) ![Continental Race 28 700x20-25c Bicycle Inner Tubes - 42mm Long Presta Valve - 2 Pack - Image 4](https://m.media-amazon.com/images/I/51SXq7dXtCL.jpg) ## Questions & Answers **Q: Will these fit in a 25 inch wheel?** A: Unfortunately, it will not fit a 25 inch tire, it is intended for 28 inch tires. **Q: Do these have a removable valve core?** A: Its a Presta valve. **Q: Will these fit on my continental 700x25 road bike tires?** A: According to the data on the package, they will fit 700 x 20 to 700 x 25 rims. The actual tire is marked 700 x 23. **Q: Where are these made?** A: My understanding is that they are made in Germany ## Customer Reviews ### ⭐⭐⭐⭐⭐ Continental quality and value. *by D***G on November 16, 2025* Have used Continental tires and tubes for a few years now switching away from Michelin. Our rides are mostly city urban streets and bike paths and regularly got flats when running Michelin tires and tubes. After switching to Continental tires (Gran Prix 4 Season) and tubes. 🤞🏻🤞🏻🤞🏻no flats. These medium weight tubes and their “supersonic” lightweight tubes perform perfectly. Note these use are in the 70 gram weight range while the supersonic tubes are 50ish grams. Just a bit heavier than those finicky TPU tubes which failed within a month if not right out of the box. These tubes hold air for days if not a week or two. Nice ride and durable. Make sure to order the correct stem length to fit your wheel rims. Toss the valve stem nut never thought they would rattle until I found out it was the reason my front wheel rattled while rolling slow enough to hear it. Go figure ### ⭐⭐⭐⭐⭐ Fits my bike and works well. No issue *by P***R on April 7, 2026* Bought this as a spare for my road bike. It's fairly cheap and easy to install. The valves could get worn but I think it's after several years. It's probably a few dollars cheaper buying it online versus at the store ### ⭐⭐⭐⭐⭐ Great product *by M***O on April 16, 2026* These are great tubes. I'm an avid bike rider so I'd recommend this product. Great price ## Frequently Bought Together - Continental Race 28 700x20-25c Bicycle Inner Tubes - 42mm Long Presta Valve - 2 Pack - Continental Ultra Sport III 700x25c Black/Black Folding PureGrip - Pair (2 Tires) --- ## 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/426466488-continental-race-28-700x20-25c-bicycle-inner-tubes-42mm-long](https://www.desertcart.us/products/426466488-continental-race-28-700x20-25c-bicycle-inner-tubes-42mm-long) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-12*