26x1.7/2.2 mm Presta Valve Inner Tube 48 mm Size:Unique size - Class B: Protects the

- Class B: Protects the top and back of the head but does not cover the ears

which creates a softer consistency) for softer impacts

There are 2 categories: - Class A: protects the top and back of the head

What about comfort

26x1.7/2.2 mm Presta Valve Inner Tube 48 mm Size:Unique size - Class B: Protects theThis inner tube is compatible with 26" diameter tyres, with a cross section ranging from 1. 70 to 2. 20 with a 48 mm Presta valve. Choosing an inner tube: To maintain your bike properly, it is important to know the exact dimensions of your tyres. This information is visible directly on the sidewall of the tyre (diameter and section). For example, 26x1. 90 means a tyre with a diameter of 26 inches and a width of 1. 90 inches. On the side, you will also