--- product_id: 48145678 title: "Race 28 (700c) x 25/32C Presta Valve Inner Tube" brand: "continental" price: "¥2802" currency: JPY in_stock: true reviews_count: 13 category: "Continental" url: https://www.desertcart.jp/products/48145678-race-28-700c-x-25-32c-presta-valve-inner-tube store_origin: JP region: Japan --- # Lightweight 139g 42mm Presta valve Fits 25-32C tires Race 28 (700c) x 25/32C Presta Valve Inner Tube **Brand:** continental **Price:** ¥2802 **Availability:** ✅ In Stock ## Summary > 🚴‍♀️ Ride Fast, Ride Fearless – The Tube That Keeps Up With You! ## Quick Answers - **What is this?** Race 28 (700c) x 25/32C Presta Valve Inner Tube by continental - **How much does it cost?** ¥2802 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/48145678-race-28-700c-x-25-32c-presta-valve-inner-tube) ## 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 - • **Featherlight Durability:** At just 139 grams, this tube balances ultra-lightweight design with robust puncture resistance. - • **Leak-Proof Presta Valve:** 42mm high-quality valve designed for effortless inflation and consistent air retention on every ride. - • **Precision Fit for Speed:** Optimized for 700c tires from 25 to 32C, ensuring a perfect, race-ready fit every time. - • **Proven German Engineering:** Crafted by Continental, leveraging over a century of tire innovation for unmatched reliability. - • **Ride Longer, Replace Less:** Built to endure rough terrains and daily commutes, saving you time and money on replacements. ## Overview The Continental Race 28 inner tube is a premium, lightweight rubber tube designed for 700c road bike tires sized 25-32C. Featuring a 42mm Presta valve for easy inflation and superior air retention, it weighs only 139 grams, combining durability with performance. Engineered in Germany by Continental, a leader with over 100 years of cycling expertise, this tube offers reliable puncture resistance and consistent ride quality, making it the go-to choice for serious cyclists seeking speed and endurance. ## Description From the manufacturer Overview Continental is known as a manufacturer of good quality tires in almost all segments of mobility. After all, Continental can look back on more than 100 years of company history, in which the development and production of bicycle tires has always been the focus. Many years of experience in tyre technology is reflected in every single product, which constantly raises the bar in terms of quality and comfort. About Us In our technology and development center in Korbach, we are constantly developing good technologies such as the unbeatable Black Chili compound and the ultimate Vectran breaker anti-puncture technology, both used at the top end of race sport. Review: Reliable and Durable Tubes for Serious Cyclists - I used the Continental Race 28 (700c) tire tubes for a while now, and they have proven to be an excellent choice for both my daily commutes and long-distance rides. Here’s why I highly recommend them: Durability: These tubes are incredibly durable. I’ve ridden over various terrains, including rough roads and gravel paths, and they’ve held up remarkably well. No Punctures, and the tubes maintain their integrity even after extensive use. Easy Installation: Installation is a breeze with these tubes. They fit perfectly into my 700c tires, and the valve stem length is just right for my rims. The Presta valves are high-quality and don’t leak, ensuring consistent air pressure. Consistent Performance: The tube provide a smooth and reliable ride. They hold air well, and I don’t have to top up the pressure as often as I did with other brands. Lightweight: Despite their durability, these tubes are lightweight, which is essential for maintaining speed and efficiency during rides. They don’t add unnecessary weight to my bike, making them ideal for racing and long-distance cycling. Value for Money: Considering the quality and performance, these tubes are excellent value for money. They last longer than cheaper alternatives, which means fewer replacements and overall savings in the long run. Overall, the Continental Race 28 (700c) tire tubes are a top-notch choice for any serious cyclist. They offer durability, reliability, and performance that you can count on. Whether you’re commuting, training, or racing, these tubes will not let you down. I highly recommend them! Review: Quality - Really good product. High quality, good price and fantastic service ## Features - Fits 25 - 32C tyres - Presta valve, Valve : 42 mm - Weighs 139 grams - Model number: 181921 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B008ZTM95C | | Best Sellers Rank | 2,611 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 30 in Cycling Tubes | | Bike Type | Road Bike | | Brand | Continental | | Brand Name | Continental | | Compatible Tire Width Maximum | 32 Centimetres | | Compatible Tire Width Minimum | 25 Inches | | Country Of Origin | Germany | | Customer Reviews | 4.5 out of 5 stars 5,254 Reviews | | EU Spare Part Availability Duration | 2 Years | | Global Trade Identification Number | 04019238556858 | | Included Components | no | | Item Diameter | 697 Millimetres | | Item Type Name | Continental R28 Training Presta Inner Tube - Black, 700C x 25 - 32 C/42mm | | Item Weight | 4.94 Ounces | | Item Width | 25 Millimetres | | Item diameter | 697 Millimetres | | Item width | 25 Millimetres | | Manufacturer | Continental | | Manufacturer Part Number | TUC81921 | | Manufacturer Warranty Description | producer | | Material | Rubber | | Material Type | Rubber | | Model Number | 0181921 | | Number of Items | 1 | | Size | 700C x 25 - 32 C/ 42mm | | Unit Count | 1.0 count | | Valve Length | 42 Millimetres | | Valve Type | Presta | | Valve type | Presta | | Wheel Size | 28 Inches | | Wheel size | 28 Inches | ## Product Details - **Brand:** Continental - **Item diameter:** 697 Millimetres - **Material:** Rubber - **Valve type:** Presta - **Wheel size:** 28 Inches ## Images ![Race 28 (700c) x 25/32C Presta Valve Inner Tube - Image 1](https://m.media-amazon.com/images/I/718XvEdQTeL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Can I put these into tubeless tyres?** A: Yes they can be used in tubeless tyres if you wish to use a tube **Q: Are these inner tubes suitable for 700 x 20/ 28** A: 28 yes, range covered 25-32. I'd say too big for 20. **Q: The photos show a schrader valve not a presta valve. Can you clarify the valve type and length?** A: The inner tube is available in both valve options with the Presta being a standard 45mm valve though 60mm and 80 mm options are available in presta.Steve **Q: Is the inner core removable and how do I specify the length of the presta valve (a previous answer says there are options)?** A: I think the core is removable. The presta valve needs to clear the rim by approx. 30mm so you can connect the pump on. If you have a pump with the flexi end that screws on, this is not as critical. You need a longer valve if you have wheels with an more aero design. 60mm should cover most applications. Should you have to use the new tube, you can measure the length of the old valve! ## Customer Reviews ### ⭐⭐⭐⭐⭐ Reliable and Durable Tubes for Serious Cyclists *by H***G on 20 July 2024* I used the Continental Race 28 (700c) tire tubes for a while now, and they have proven to be an excellent choice for both my daily commutes and long-distance rides. Here’s why I highly recommend them: Durability: These tubes are incredibly durable. I’ve ridden over various terrains, including rough roads and gravel paths, and they’ve held up remarkably well. No Punctures, and the tubes maintain their integrity even after extensive use. Easy Installation: Installation is a breeze with these tubes. They fit perfectly into my 700c tires, and the valve stem length is just right for my rims. The Presta valves are high-quality and don’t leak, ensuring consistent air pressure. Consistent Performance: The tube provide a smooth and reliable ride. They hold air well, and I don’t have to top up the pressure as often as I did with other brands. Lightweight: Despite their durability, these tubes are lightweight, which is essential for maintaining speed and efficiency during rides. They don’t add unnecessary weight to my bike, making them ideal for racing and long-distance cycling. Value for Money: Considering the quality and performance, these tubes are excellent value for money. They last longer than cheaper alternatives, which means fewer replacements and overall savings in the long run. Overall, the Continental Race 28 (700c) tire tubes are a top-notch choice for any serious cyclist. They offer durability, reliability, and performance that you can count on. Whether you’re commuting, training, or racing, these tubes will not let you down. I highly recommend them! ### ⭐⭐⭐⭐⭐ Quality *by A***S on 18 June 2026* Really good product. High quality, good price and fantastic service ### ⭐⭐⭐⭐ Good value for money but nozzle can be a problem *by T***D on 27 November 2025* I have ordered a few of these and they seem to be of adequate quality but the nozzle can often become faulty and let out air. Quality control isn't great on these but for the money, I think they are good value. ## Frequently Bought Together - Continental 42mm Presta Valve Tube - Continental Ultra Gatorskin 650x23c --- ## 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/48145678-race-28-700c-x-25-32c-presta-valve-inner-tube](https://www.desertcart.jp/products/48145678-race-28-700c-x-25-32c-presta-valve-inner-tube) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-08-18*