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Old 12-08-2015, 11:09 AM   #15
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Country Coach Owners Club
Join Date: Jan 2006
Location: Sacramento Area
Posts: 3,228
Snow is a major challenge for heavy rigs because here in the West it usually includes Gravity in big doses, and Ice!

I have experienced Terror sliding from Donner Summit to Truckee on I80 in a car with one chained tire on the drive axle.

As an "experienced" Minnesota flatland snow driver, I gained huge new respect that night for Mountains and Gravity in a snow storm.

Sounds like you are well prepared for your travel environment.

1995 CC Magna #5280
C8.3L 300hp Cummins, 31,000lbs
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Old 12-08-2015, 11:23 AM   #16
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Commercial Member
Join Date: Mar 2010
Location: Akron, Ohio
Posts: 1,038
Dual spacing

Can't address all applications but the specs for 10R-22.5 indicate

7.5 rim (6.75 to 8.25 is OK)
Tire max width 10.0"
Tire OD 40.10
Minimum dual spacing 11.40 < Controlled by wheel offset so you need to confirm. THIS IS IMPORTANT measurement

Max Load Single LR-E 4,675#@85 psi LR-F 5,205# @ 100psi
LR-G 5,675# @115 psi

Max Load Dual LR-E 4,410#@85 psi LR-F 4,940# @ 100psi
LR-G 5,355# @115 psi

Retired Design & Quality Tire Eng. Read my tire blog RVTireSafety.com to learn more about RV tires, valves & wheels. Read THIS post on why Tires Fail
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Old 12-08-2015, 04:12 PM   #17
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Country Coach Owners Club
Join Date: Jan 2006
Location: Sacramento Area
Posts: 3,228
Thanks tireman.

The rig was converted by the manufacturer to 10r 22.5 through a recall in 2002 from Michelin.

That is the description on the vehicle placard next to the driver position.

This will be the 3rd set of 10R 22.5 on the rg in 14 years.

Rear axle weight is 19350 lbs at the scales.

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replace, tires

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