Tyre Pressure

[Nic Chalcraft]

Hi, Checked my tyres today but the manual states 1.3bar Front 1.8bar Rear.
Tried to find a conversion chart but couldn't. I pumped them up to about
30lbs is this too much? Vespa ET4

Thanks

Nic

[Nic Chalcraft]

Just found a website which says 1.4bar is only 20psi that seems like I'd be
riding on very flat tyres.

Opinions appreciated

Nic

[Phil]

1.0 bar = 14.50 psi

1.3 bar = 18.85 (19) psi
1.8 bar = 26.10 (26) psi

Phil
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N+30.17° W-083.06°
Flipr'sWorld : http://www.roddenberry.net
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[Gary G Jones]

Not wishing to sound rude but, I take it that its states a pressure for 1 up
and 2 up riding.
If you are on the large side ,as I am, I used to put in pressure between the
1up and 2 up pressure.
Hope that makes some form of sense?
GGJ

"Nic Chalcraft" <nic...@btinternet.com> wrote in message
news:ak0fte$bto$1...@paris.btinternet.com...

[Nic Chalcraft]

It states 2.0bar for 2 up, And if 1.3bar =19psi that does seem rather flat
to me, I'm sure they had more in them than that before I filled them. I am
riding on 30psi. The sidewalls state do not fill over 36psi. Do you think I
should let some out??

Nic

"Phil" <fl...@alltel.net> wrote in message
news:TQP89.164$Yi2.2...@news.alltel.net...

[Phil]

"Nic Chalcraft" <nic...@btinternet.com> wrote in message:

> It states 2.0bar for 2 up, And if 1.3bar =19psi that does seem rather flat
> to me, I'm sure they had more in them than that before I filled them. I am
> riding on 30psi. The sidewalls state do not fill over 36psi. Do you think
I
> should let some out??

I tend to follow the manufacturer recommendation in regard to tire pressure,
especially with OEM tires. (due to my size/weight, I use the recommended
2-up tire pressure) Too much pressure can reduce available traction to a
dangerous level... best to check with a knowledgeable dealer regarding the
correct tire pressure for your scooter and riding conditions.

2.0 bar = 29 psi

[Nic Chalcraft]

Ta.

"Phil" <fl...@alltel.net> wrote in message

news:e8S89.174$Yi2.2...@news.alltel.net...

[don-ohio]

"Nic Chalcraft" <nic...@btinternet.com> wrote in message news:<ak1aau$1k0$1...@venus.btinternet.com>...

Apparently,Nic,they are worried about too much pressure causing a loss
of traction on the lighter front end.Also your braking should be a
little better with recommended pressure.When you run it on a warm day
at roadspeed for about a half an hour,stop and feel how hot the
sidewalls are.They shouldn't be overly hot.A hot tire is a tell-tale
sign of underinflation. I wouldn't deviate by over 3 lbs. from the
`recommended' pressures(this is not maximum pressure).When you ride 2
people,it is more important to increase the rear tire pressure a
little than it is the front tire's,depending on how far back the
rider's are situated,there may not be much increased weight on the
front,except for heavy braking.And then conversely going up a fairly
steep hill may take weight off that front tire considerably.When I
ride 2 people on my bike,all most all the weight situates to the rear
tire so I inflate accordingly. don-ohio (:^)

[Mike Lynch]

Gents, 1 bar = 14.7 psi. Now just use a calculator.
Mike.

"Nic Chalcraft" <nic...@btinternet.com> wrote in message

news:ak1aau$1k0$1...@venus.btinternet.com...

[David Probett]

FWIW:

Piaggio X9 500:

Front 2.40 bar = 34 psi
Rear 1-up 2.25 bar = 32.5 psi
2-up 2.60bar = 37.0 psi

David
David Probett
davidp...@pobox.com
ICQ 10558763
Microsoft .NET passportholder

[Tom =§=]

>Not wishing to sound rude but, I take it that its states a pressure for 1 up
>and 2 up riding.
>If you are on the large side ,as I am, I used to put in pressure between the
>1up and 2 up pressure.
>Hope that makes some form of sense?

yeh, i thought about doing that.

anyone know if its a good/bad idea?

-Tom