GPX Tyres

[Kiz.B]

I seem to find my tyres not holding pressure. I like running 30psi front and 32psi rear on my GPX, yet she seems to revert back to around 27psi in both tyres almost overnight. I'm a big fella and this loss ends up making the front feel spongy and almost sluggish to change lean direction.

Its got Dunlop Arrowmax GT301's (F: 100/80 16, R: 130/80 16) on it and I can't see a tyre pressure rating on the sidewalls.

I hope this is a simple fix

[Amanda]

Have you tried putting more pressure in the tyres? Say 32-34 and seeing how much loss at those pressures? If your a bigger guy those may work better for you. Could ring Tyres for Bikes and ask them about leaking, could be valves maybe

[upg]

Are you measuring the pressure cold each time?

Check for leaks

I would start at the valve
then the tread itself
and lastly the bead

Bucket of soapy water should do the trick