Tyre pressures

[Farky]

What tyre pressures do you all run?? I've a CBR600RR 04 with Pirelli Corsa 3's and was wondering what pressures to put in them?? I'm bang on 11stone and find the recommended 36/42 too hard. I've heard some say 30/30!!

Ian

[RemaL]

run 34 front 36 rear on my Triple. says 34 /42 in the manual. the rear was moving around too much at that pressure and now much better

[Farky]

Yeah, was thinking something like that. I never have a problem with the rear, its just the front seems a bit vague at times so i think i'll drop the front to 34.
Cheers mate!!

[Biker's Nemesis]

30/30 in my opinion would be too soft for the road, that's the sort of pressures for track days.

You won't get enough heat in them, do yourself a favour and stick to the manufacturer's recommended pressures.

[RemaL]

forgot to add i'm a bit more than 11 stone too

[Hooli]

my old 600 ran at about 32f 36r from memory, now running 36f & 42r on the gsx but that weighs a bit more.

[Jimmy5]

I've got the same bike with power 2CT's and run 36 front, 38 rear for normal road use. It never felt right with 42 in the rear...like it was always going to let go

Theres no problem getting heat into the tyres as there always warm to touch when the bikes being put away but it feels as if the grip is endless.

I'd stick to 42 if you do mainly motorway miles though

[Biker's Nemesis]

Running higher pressure for motorway use will achieve what? A higher pressure combined with constant motorway speeds will only increase pressure.

Knock a couple of psi out of the tyres if you must, but running 12 psi less than recommended as someone has mentioned is not wise.

OP, why not try dropping a couple of psi less at a time, and see how it goes from there fella.

My road bike hangs in there no problem, running the standard 36/42.

[Hyperion]

2.5 bar front 2.9 rear...no idea what PSI that is.
That's what the manual says for 'continuous high speed riding'

[Jimmy5]

Biker's Nemesis said:

Running higher pressure for motorway use will achieve what? A higher pressure combined with constant motorway speeds will only increase pressure.

I thought it was the deformation of a tyre ie when accelerating, braking, cornering etc that heats it. Therefore constant motorway speeds do not.

Apology's in advance if this is incorrect, its just what I was led to beleive

[Biker's Nemesis]

Jimmy5 said:

Biker's Nemesis said:

Running higher pressure for motorway use will achieve what? A higher pressure combined with constant motorway speeds will only increase pressure.

I thought it was the deformation of a tyre ie when accelerating, braking, cornering etc that heats it. Therefore constant motorway speeds do not.

Apology's in advance if this is incorrect, its just what I was led to beleive

You are right in that respect, but constand high speed will increase friction/heat, and pressure.

Rub your hand up your arm slowly, then try it faster.

[slim_boy_fat]

This topic must come up the most in bike forums.

There is no correct answer well other than dont ride around with 5psi in the front tyre!!!

For the road i drop the front by 2 psi to 34 and the rear by 6 psi to 36.

p.s. i am NOT 11 stone... :P

Edited by slim_boy_fat on Thursday 24th April 00:21

[Beemer-5]

I generally use 2 psi more than the book says for road use.

[Beemer-5]

[quote=slim_boy_fat]This topic must come up the most in bike forums.

There is no correct answer well other than dont ride around with 5psi in the front tyre!!!

For the road i drop the front by 2 psi to 34 and the rear by 6 psi to 36.

p.s. i am NOT 11 stone... :P


So 9?
Or 15!

[robstvr]

You want the tyre firmer for motorways, etc. It reduces both tyre wear (squaring off) and fuel consumptionfrom reduced friction. Less friction does also mean a bit less heat.

The main warming effect on tyres is the flex of the wall, so in fact lower pressures do increase heating.

My 2p. I stick to manual pressures for the road, and drop them down for the track, or for big loads (my ass).

[Biker's Nemesis]

robstvr said:

You want the tyre firmer for motorways, etc. It reduces both tyre wear (squaring off) and fuel consumptionfrom reduced friction. Less friction does also mean a bit less heat.

The main warming effect on tyres is the flex of the wall, so in fact lower pressures do increase heating.

My 2p. I stick to manual pressures for the road, and drop them down for the track, or for big loads (my ass).

OK... does a tyre flex at higher pressure on a motorway? Of course it does, continued high speeds on a motorway will cause flex in the tyre and increase pressure.

Yes drop your pressures for the track, but why o why drop them for a "big loads".

I always thought tyre and motorcycle manufacturers specified greater pressures for increased weight.

[Brummmie]

You drop your tyres on track days because there is more heat generated, so the 'hot' pressure will be higher. If you run the pressures too low it will be unstable, also the contact patch can fold in on itself like a cupped hand, so decreasing your contact area. Increase your pressures when you have the camping gear and the fat missus on board, you want to support the tyre more, thats why there are tyre specific models for big bee em's, FJR's and the like with an extra ply in the manufacture.

[Biker's Nemesis]

Brummmie said:

You drop your tyres on track days because there is more heat generated, so the 'hot' pressure will be higher. If you run the pressures too low it will be unstable, also the contact patch can fold in on itself like a cupped hand, so decreasing your contact area. Increase your pressures when you have the camping gear and the fat missus on board, you want to support the tyre more, thats why there are tyre specific models for big bee em's, FJR's and the like with an extra ply in the manufacture.

I was referring too increasing pressures for solo riding, in his own words "my big ass".

Can't believe all this confusion, about tyre pressures.

30psi in a Honda 600, ridden on the road is too low.

[Brummmie]

Biker's Nemesis said:

Brummmie said:

You drop your tyres on track days because there is more heat generated, so the 'hot' pressure will be higher. If you run the pressures too low it will be unstable, also the contact patch can fold in on itself like a cupped hand, so decreasing your contact area. Increase your pressures when you have the camping gear and the fat missus on board, you want to support the tyre more, thats why there are tyre specific models for big bee em's, FJR's and the like with an extra ply in the manufacture.

I was referring too increasing pressures for solo riding, in his own words "my big ass".

Can't believe all this confusion, about tyre pressures.

30psi in a Honda 600, ridden on the road is too low.

Get you! just trying to explain the effects.

[Biker's Nemesis]

Brummmie said:

Biker's Nemesis said:

Brummmie said:

You drop your tyres on track days because there is more heat generated, so the 'hot' pressure will be higher. If you run the pressures too low it will be unstable, also the contact patch can fold in on itself like a cupped hand, so decreasing your contact area. Increase your pressures when you have the camping gear and the fat missus on board, you want to support the tyre more, thats why there are tyre specific models for big bee em's, FJR's and the like with an extra ply in the manufacture.

I was referring too increasing pressures for solo riding, in his own words "my big ass".

Can't believe all this confusion, about tyre pressures.

30psi in a Honda 600, ridden on the road is too low.

Get you! just trying to explain the effects.

Same as me then.