You should always have spare inner tubes on hand in your home workshop and carry spares while out riding. This model fits the Denago City Model 1 eBike as well as other makes/models that use the same inner tube size. 

• Sized for use with 27.5 x 2.2" tires
• Schrader valve type
• Sold individually - order qty "2" if you need replacement tubes for both wheels on a complete bike