Renewed tyres and innertubes on my Trek DS with Bontanger wheels.
Both front and back tyre deflate 10 psi and 15 psi after every ride. Valves are shaudler.
Why is this happening so often. Is it the valves I wonder
I am concerned when doing my first bike tour this year, I will be spending every other day trying to inflate with my small pump which wont reach the 75 psi of recomended tyre pressure.
I have checked for faults on tyre, tube and protective ring to wheel, but all seem OK.
Totally baffled!
Please ...any ideas out there.