Help with Tire Pressure

[XR400RMan]

Ok My XR250R came with an IRC 120/80-18 62M Motocross M5B-Soft Terrain Rear tire when I got the bike used, The front has Dunlop Sports 80/100-21 51M D755F, I can't find anything on the net about Correct Tire Pressure, I looked in my manual but it said if you have tires other than Stock to check with the brand to see what pressure is correct, I don't know Dunlops Website and I don't know IRC's website, I went to Rocky Mountain and found the same rear tire I have but they didn't list the correct PSI, Any help would be appreciated. Matt

 

[IrishEKU]

I have Dunlop 739's on front and back. I fluctuate my pressures with the temp due to expantion and contraction. But, a good rule of thumb that I use is 13-15psi front. 15-18psi back.

 

[Jaybird]

The tire should state the recommended max. pressure on the side.

 

[XR400RMan]

Yeah thats what I thought that the Pressures would be on the sides of the tires, I didn't see them listed but I might have just missed them, thanks Matt