You should always have spare inner tubes on hand in your home workshop and carry spares while out riding. This model fits the Denago Commute eBike as well as other makes/models that use the same inner tube size. 

• Sized for use with 27.5 x 2.6" tires
• Schrader valve type
• Sold individually - order qty "2" if you need replacement tubes for both wheels on a complete bike