Tyre pressure

[The_East_Stand_View]

Recently got a new hybrid. I use panniers. Tires say 100 psi max. I don't want to blow the inner tube. What psi shall I put in it?

I cycle on cycle track mainly, bit of road. I weigh 105. Kg. Got xl size frame bike

 

[ianrauk]

If the tyres say 100psi then go for that or just under. They wont go bang if that's what you are afraid of.

 

[Black Sheep]

Keep the pressures high in slicks, they give less rolling resistance, I'm running about 60ish to 80ish in my road bike

 

[wheres_my_beard]

Go for 100 psi. That is a safe max.

 

[ianrauk]

Keep the pressures high in slicks, they give less rolling resistance, I'm running about 60ish to 80ish in my road bike

60 to 80 on road slicks, that's certainly not high. What tyres are you using?

 

[rossjevans]

I have been wondering why tyres give a pressure recommendation when surely it should be the inner tube? However on some spare tubes I picked up recently there is no mention of what pressure they can safely run.

 

[The_East_Stand_View]

Thanks all. Good point Ross that what confused me too. Anyone?

 

[Foghorn_leghorn]

The inner tube's only there to make the wheel and tyre airtight and stop air escaping past the spoke nipples etc. It's the tyre that provides the resistance to the volume of air pumped in and builds pressure.

 

[alasdairgf]

I weigh about the same as you, and riding a large-framed bike. My LBS advised I pump up to the max rating for my tyre, or about 5psi below, due to my... generous waistline. Also, they said it was important to check the pressure weekly.

 

[Angelfishsolo]

When I first started out it was suggested I use the 10% rule. So 100psi in rear - 10% = 90psi in front. It provides a pretty good feel for road riding.

 

[benb]

I've got conti gatorskins, and have them at their max of 120psi.

I weigh 98kg, so not the lightest person.

 

[SportMonkey]

I run at my 125psi max. I've only once been two lazy to pump them up when they felt a bit low and managed to shred my tyre on the way to work. Lesson learned, keep them at 125psi and my poor arse will have to cope.

 

[Rebel Ian]

60 to 80 on road slicks, that's certainly not high. What tyres are you using?

I was going to say the same. 60 is incredibly low for a road bike. I run mine at 120 and never below 100.

 

[The_East_Stand_View]

Thanks. I'll take it up to just short of 100 psi

 

[Black Sheep]

60 to 80 on road slicks, that's certainly not high. What tyres are you using?

Michelin world comp I think,

27 x 1 1/4