Bruce said:
How much do you guys weigh? Weight and load makes a huge difference in wear. A guy who is 240 lbs and has his 140 lb girlfriend riding pillion most of time isn't going to get nearly the treadlife that a 130 lb solo rider will.
True, Bruce.
Or maybe not.....
That's why it's crucial to follow the mfg recommendations if they give one...
I'm 5'9" 160lbs.
Metz recommends the pressures above for 'average' solo riding, the rider being 170lb; they also stipulate psi for higher loads.
In their 04 fitment guide they say 'generally' 2-up 'light' would be 40/46 psi f/r
and 2-up 'heavy' could be 41-42 f/48-49 r psi.
So your hypothetical 380lb riders had
better use higher pressures!
(pc question of the day....are they 2-up 'light' or 2-up 'heavy??

)
Metzeler also says "...All pressures shown are
MINIMUM pressures. Using higher pressures (up to the maximum listed on the sidewall) will result in higher mileage..."
Bottom line....when you get tires other than the exact oem ones that came w/ your ride....please throw out the OM psi recomendations and find out what the new mfg says...
I'd be interested in hearing what psi Dennis is running in that rear tire....