1 A slow deflation is occurring in the tyre causing it to lose air over time 2 There's a leak developing steadily within the tire causing it to let out air slowly over time 3 Inside the tire a steady escape of air is taking place resulting in an invisible leakage 4 The tire is gradually losing air due to a steady puncture that is developing over time 5 With little awareness the tire is experiencing a gradual puncture from within leading to a steady release of air 6 A steady leakage is appearing inside the tyre resulting in a slow release of air over time 7 As time passes a gradual puncture happens within the tire causing it to steadily lose air 8 Inside the tyre there is a slow leakage happening releasing air over time 9 A slow leakage of air from within the tire is gradually causing a decrease in pressure 10 Over a period of time the tire is experiencing a gradual air loss due to a puncture taking place inside 11 The tire is suffering from a steady puncture within its structure causing a slow loss of air over an extended period of time 12 A slow loss of air is occurring within the tyre due to a leakage resulting in a slow release of air 13 An unseen deflation is happening within the tyre leading to a gradual release of air that occurs over time 14 A deflation is slowly draining the air from the tire over time resulting in a steady loss of pressure 15 Over an extended period of time the tyre is experiencing a gradual puncture leading to a steady reduction in air pressure 16 Gradually the tyre is losing air due to a minuscule puncture within it 17 An subtle puncture is causing the tire to gradually lose air over time 18 A steady escape of air is occuring within the tire causing it to lose air slowly 19 The oxygen inside the tire is escaping at a slow rate due to a puncture within it 20 Gradually the tire is losing air due to a slow leakage within it