best psi vespa 300 for two up riding
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Vespa 300 touring 2018
Joined: 20 Aug 2017
Posts: 244
Location: Hawley PA
Tue Sep 10, 2019 7:18 am quote
I know this is in the book ,but every one has his or her way of doing it. What is the best PSI for two up riding on Vespa 300?
I think I have been useing 32 rear 29 front
Thanks Older Guy
Molto Verboso
2018 GTS300 Super Sport - Donatello Vespace
Joined: 22 Dec 2012
Posts: 1353
Location: Toronto, Ontario Canada
Tue Sep 10, 2019 7:38 am quote
It actually is written on the serial number plate, at least in mine anyway. At two riders, I run mine at 37 and 28 on my SS300
Veni, Vidi, Posti
2007 LX 150 (memories)
Joined: 12 Jun 2007
Posts: 8234
Location: New Hampshire
Tue Sep 10, 2019 9:56 am quote
Did You Ever Look?
2016 Vespa GTS300ie abs/asr/ess Settantesimo '70'
Joined: 11 Jun 2011
Posts: 2382
Location: Starfleet Command Engineering, Southern UK HQ,
Tue Sep 10, 2019 3:40 pm quote
Front pressure should stay at 26psi for two up riding. Rear should be 32. You could make a minor adjustment upwards but don't alter by more than 2 psi as it can upset handling and safety. You really shouldn't need to go higher than manufacturers recommended limits on this.
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