How Much PSI?

[johnsmith222]

Hi guys.

I have had a tyre replaced recently and it has a leak, either from the rim or the valve. The valve was replaced so I'm more inclined to think it's from the rim.

Anyway, my compressor could only handle 60psi so I'm off to the petrol station to put more in. How many pounds should I put in and do garage compressors go that high?

Thanks for any help guys.

-David.

[Ichy]

What bike?

As a safe guess 35PSI is a good starting point.
____________________
https://www.metacafe.com/watch/1972097/how_to_behave_on_a_forum/

[Easter Bunny]

If its leaking it wont help to put more than recommended pressure, in fact its dangerous!
____________________
The light at the end of the tunnel is an oncoming train!

[johnsmith222]

[Raffles]

[johnsmith222]

[Martay]

[quote="J5"]

[johnsmith222]

[quote="Martay"]

[CaNsA]

Dude, you should not have anything over 40psi (unless your a really fat barstard) in a rear tyre on any sports/sports-touring bike.

I run 36 or 38 on the rear of the cbr and that weighs 280-odd kilo

[Acemastr]

[johnsmith222]

[CaNsA]

[Raffles]

Another option would be to remove the wheel from the bike and dump it into a tub of water. You should then be able to identify where the air is escaping from.
____________________
A good loser will always be a loser.

[Kickstart]

Hi

High pressure isn't likely to seat it to prevent a small leak. You need to find the leak and fix it (which might mean cleaning up the rim), using a large tub of water (the bath when nobody is looking).

All the best

Keith
____________________
Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

[johnsmith222]

Alright guys. I checked the pressure 15 hours after inflating the tyre and it was still at the same psi of 42.

I have managed to ride to uni and back without the tyre deflating. I am going to double check for any punctures, but I don't think there is any.

Should I just keep riding and see if the pressure goes down any further?

[Ditto]

You won't be able to re seat it by cranking the PSI up.

Take it back to the fitters. Mine was doing exactly the same and they took off the tyre and painted some 'Bead sealant' stuff onto the inside of the wheel.

Not had a problem since. The wheels can get scratched up inside and a leak can occur.

They didnt charge me to do the bead sealant, if you get a tyre fitted then you expect it not to leak.

And if you have pumped it up to a high PSI you shouldn't ride around on it, it can make the handling skittish.
____________________
CG 125 > Bandit 600 > CBR 600 FY > Street Triple R

[Easter Bunny]

Take it back soon as the later you leave it the less likely they will do it for nowt
____________________
The light at the end of the tunnel is an oncoming train!