Continental Tour 28 (700c) 28-37 mm (622-630), Dunlop 40 mm Inner Tube

Continental Tour 28 is a classic inner tube for 28-inch and 700c wheels with tires in the narrower touring and city category. It fits 700c tires from 28 to 37 mm and is a reliable choice for commuting, touring, and everyday cycling when you want a standard butyl tube with good durability.

This version has a 40 mm Dunlop valve, also known as a Blitz valve. Dunlop valves are primarily found on city, trekking, and older European bicycles and use the same valve hole in the rim as a Schrader/car valve. Therefore, check which valve type your bicycle has before ordering—this tube does not have a Presta/racing valve.

Continental Tour 28 combines low weight with good puncture protection, and each tube undergoes quality control before leaving the factory. The tube fits ETRTO 28-622 to 37-622 and 32-630. Check the numbers on the side of your tire if you are unsure, as the ETRTO measurement is more reliable than relying solely on designations such as 28" or 700c.

Quick Specs

• Product type: Bicycle tube / inner tube
• Material: Butyl
• Fits: 28-622 to 37-622 and 32-630
• Tire width for 622 mm: 28–37 mm
• Wheel standard: 700c / 28" (622 mm) and 27" in size 32-630
• Valve type: Dunlop / Blitz valve
• Valve length: 40 mm
• Weight: Approximately 140 g
• Does not fit: Bicycles requiring a Presta/racing valve