Schwalbe Road Tube Av15 700 X 18C 28C 40Mm Schrader Valve Tube Gel Seat Covers 99 km [mile] Lap：Upper display

99 km [mile] Lap：Upper display (average lap speed

Reduces the risk of Cardiovascular diseases - Many research studies have associated deficiency of vitamin D3 with increased risk of cardiovascular diseases and related causative factors

Auto sleep for battery power saving

Medium and Large

In damp situations and wet places

Schwalbe Road Tube Av15 700 X 18C 28C 40Mm Schrader Valve Tube Gel Seat Covers 99 km [mile] Lap：Upper displaySchwalbe tubes are made with a special butyl rubber compound which makes them extremely airtight and extremely reliable. Less pressure drop means safer cycling, fewer punctures and reduced rolling resistance, plus you don't have to inflate them so often. Airtightness. Apart from the quality of the ingredients, the purity of the rubber mixture is crucial to the quality of the tube. The base material is therefore sieved at enormous pressure through