Loosing Tire Pressure

[BMWE46]

I've got about 3000 miles on my s1k now and it seems I always have to add air to both the front and rear tires. Last time I did the front was below 10psi and rear was below 20psi. I have the K3's. Also that last time was after the bike sat for a lil over 24hrs.

[YELLOPER1L]

I can't help but give the obvious answer but don't you think you may have slow(ish) punctures on both tyres? Other than someone pissing around with the valves when you're not around or the very unlikely scenario of warped rims front and rear it's the only answer it can be.

[crabman]

Check the valve stem cores to be tight. I have owned a new motorcycle a few years back and had the tire pressure keep going down overnight and could not find any holes in the tires. I finally took the wheels off and put them in water and saw the valve stem leaking. Front and rear were leaking.

[markjenn]

Losing 20 psi in 24-hrs is a flat. This means you could be 10 psi down in an 8-hr ride. I bet you'll find foreign debris in both tires.

- Mark

[Sal_R1]

Take a squirt bottle, add a few drops of dish soap & water,
Remove valve covers,
Shake well & start spraying the tires covering all surfaces & paying special attention to the valves (spray in top where you fill with air & around them) & rim edge (where the tire meets the wheel)

Originally Posted by BMWE46

I've got about 3000 miles on my s1k now and it seems I always have to add air to both the front and rear tires. Last time I did the front was below 10psi and rear was below 20psi. I have the K3's. Also that last time was after the bike sat for a lil over 24hrs.