Paulplex
Active Member
Hi all!
So, you should always do your tire pressure when the tires are cool - as warm air expands so a hot tire will be under more pressure than a cool one. I've fitted a TPMS to my bike - cheap one from eBay, but works well enough - and started a ride on a hot and sunny Sunday with 36 PSI in the front, 42 PSI in the rear. An hour or two into the ride, the rear is at 48 PSI ...so I stopped for a bit and let a bit of air out.
Question though ...was that the right thing to do? Should I expect such a high increase in pressure and should I have worried at 48 PSI?
The tires are Avon STORM 3D X-M on front and rear - the front got up to 41 PSI, so they both feel the heat!
So, you should always do your tire pressure when the tires are cool - as warm air expands so a hot tire will be under more pressure than a cool one. I've fitted a TPMS to my bike - cheap one from eBay, but works well enough - and started a ride on a hot and sunny Sunday with 36 PSI in the front, 42 PSI in the rear. An hour or two into the ride, the rear is at 48 PSI ...so I stopped for a bit and let a bit of air out.
Question though ...was that the right thing to do? Should I expect such a high increase in pressure and should I have worried at 48 PSI?
The tires are Avon STORM 3D X-M on front and rear - the front got up to 41 PSI, so they both feel the heat!