Hi Andreas,
As you have 175 65 r14tyres with 1-3 persons and not heavy luggage, it is the first row ...
So:
Front: 2,3 (2.3)
Rear: 2,1 (2.1)
If you want to carry 4 persons PLUS luggage with you:
Front: 2,3 (2.3)
Rear: 2,5 (2.5)
BUT ...
A bit more tyre pressure is not wrong!
You can pump all tyres to 2,3 (2.3) bar!
Makes it easyer and you can load some things in the rear without caring about the pressure. Only If you want to go on a longer holiday trip with loads of lugage in the back, make the rear 2,5 (2.5).
Tyre pressure is MUCH more important with motorbikes ...
I always put in about 0,2 (0.2) bar too much into the tyres.
I didn't have enough pressure in my rear tyre last week (1.5 instead of 2.5!!!) ...
Result: It seemed like the antishocks didn't work and fuel consumtion rose about 0,5L/100km ...
Not enough pressure is VERY dangerous as also the tempature in the tyre rises and the tyre material gets weak. So, 2,3 (2.3) bar for all tyres is okay (especially as the rear tyres only follow the front tyres).
Hope this helps ...
Andreas
Edited by: Cadfael