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Topic: Alternatives to the 9R22.5 tire (Read 301 times) previous topic - next topic

Alternatives to the 9R22.5 tire

Need to replace all six tires.  The chassis plate, and the tires on the rig are 9R22.5 with 6.75 width rims. Talking to tire shops it seems that size is not usually a stock item (thinking about on the road issues).
My research so far seems to be to go with a 245/75R22.5

9R22.5 - 9"W.  38.4"Diameter
245/75R22.5 - 9.5W.  37" Diameter

I like the 265/75R22.5 specs except it specifies a 7.5 rim
265/75R22.5 -  10"W.  38.4 Diameter

I'd like to hear what others have done in this situation

Thanks
1992 Foretravel 36' Grand Villa ORED - VC22RD Chassis - 8.3 Cummins

Re: Alternatives to the 9R22.5 tire

Reply #1 –
245/75r22.5. It works perfectly and easily sourced.
previous 1984 35 ft ORED 250 HP 3208 Cat       
previous 1998 40 ft U295 CAI 325 hp Cummins
previous 2003 40 Ft u320 build #6140 450 Cummins M11.                                                         
1999 Mazda Miata
Ron, Nancy, Tipper the cat, Max The dog
1997 U 270 36 ft build number 5174 8.3 Cummins

Re: Alternatives to the 9R22.5 tire

Reply #2 –
Check your tach and speed with your phone . These speedos can read way fast and will read faster with the smaller tire.
  The 9R is  easy from Simple tire and works fine IMHO.  The 245 /75 is not that easy to find and seems to cost more.  Both will work .  You may have the 7.5 in rims . I do .   

 9R = 38.4 OD
245/75/ =36.97 OD