What is the best tires air pressure for XL 883L - 19 inch Tire

The user manual says: 30 Front - 40 Rear
but everyone is telling me to go for 36 Front & 40 Rear.

 

Personally. I would just follow the manual.

 

Go with the manual. I go 1 or 2 psi up on the front, but thats with Metzler tires. The stock Dunlops liked the factory recommend PSI.
On the rear I split the difference of solo rider and with passenger and go with 38.
Adjust until it feels right with grip and ride. The factory knows best. Mostly.

 

Why would you 2nd guess what the manual says?

 

Why would you NOT second guess what the manual says... millions of Ford Explorer owners followed their manuals right to the crash site. The tire has "max psi cold" written right on it. Most people in the know, run their tires at or just below this figure... it gives the best tire wear and performance. If you find that your front tire is spongy or cupping out, it is because you are running it with too little PSI. If you find your rear tire wearing extremely fast or your back end squirrelly on quick turns, you are running it at too low a PSI. Don't put your trust in some damn book that was written by someone who never checks their tires ever... check your tires everyday and go by your experience.

 

What kind of air are you running in your tires?

 

I'd go by what the tire says, not what the bike's owner's manual says. I assume that not every tire manufacturer builds their tires with the exact same specs.

 

I go to the maximum psi that is on the tire and check them when they are cold. Do you believe for each 10 degrees drop in ambient temperature, tire will loose 1 psi ? I have nitrogen in car and truck and keep delaying changing over on my Heritage. I have a compressor so I can check psi @ cold and use a dial gauge. Yes, it be the one with the H-D logo on the face. I have another gauge and cross check at times. I do realize with tires at maximum pressure the psi will increase as I ride but no problems for a couple of years. Only solo ride without luggage and I scale @ 230 lbs.

 

oops !

 

that's funny!!!