Tire inflation for a bigger tire

[FJR30FAN]

Is cold tire inflation psi the same in a 190 as it is for a regular 180 size tire?

 

[RossKean]

Same pressure for a similar MC tire.  Might get away with a couple PSI less if you wanted.  Do whatever you feel most comfortable with but I would keep it in the range of 38 to 43 psi.  Might want to go to the lower side if you are starting out on a cold morning but expect to see temperatures in the 90's later on.  Again, no different from what I would do with the stock 180.

 

[FJR30FAN]

Thanks. I’m about to ride a few hours and wanted to make sure. 

 

[rbentnail]

Yep, same pressure in the 190 as the 180.  I (as do most) prefer up around 40 psi, checked cold.  Don't be anal about it, tire pressure varies as much as 10 psi from cold to hot while riding.

 

[chazglenn3]

I put 42psi in my 190 just like the 180. Did 1133 miles last weekend. No issues.

 

[art miller]

Having once worked for Goodyear Tire and Rubber I can advise you to go to the higher cold tire pressure. If you under inflate a tire it will build up pressure much more than a correctly inflated tire. Friction is greater on under inflated tires and that translates to heat and higher PSI. I always use 42psi for rear 190/55 and 39psi in front tire. I ride one up at all times.