Quote:
Originally Posted by trebuchet03
I follow the "Always be content, but never satisfied" model 
And 55psi isn't a big deal. Search Google for "Factor of Safety" - it's one of the few engineering terms that's to the point in what it is  I've been having trouble finding the FoS for modern tires, but bias ply tires were designed with an FoS between 4 and 11 with optimal FoS at 7. That's 7 times what's rated on the side. And, no doubt, modern tires at least meet this criteria. I'm not worried
Plus, added benefit of less tendency to hydroplane (something important to me given my location). |
How well do you trust the material suppliers? A lot of that factor of safety is involved because in consumer fields you engineer to mean life failures of materials and nominal strengths, depending. Going over the rating is fine, but not that far over.