TIRE INFLATION PRESSURES FOR 24' & 26' BORN FREE COACHES
Posted: Sun May 07, 2006 3:33 pm
All 24' and 26' models of Born Free Motorhomes on Ford E350 or E450 chassis generally came equipped with LT225/75R16 load range E rated tires. The downloadable table and graph contains tire inflation information that is good for all LT225/75R16 load range E rated tires no matter which brand of manufacturer. Just click on the blue 'download' button below to download either item.
The first attachment below is a table from Michelin of tire inflation pressures for various size RV tires. The second attachment is a simple to use tire inflation graph that can be used to determine the desireable inflation pressure to use for each of your tires based on the actual weight on each of the four corners of your coach determined by an actual weighing on a good truck scale.
Note that the weight that can be supported by a tire at a given inflation pressure in the rear dual configuration is less than that same tire can support with the same air pressure when mounted in a single configuration as a front tire on the vehicle.
For example, a single front tire inflated to 65 psi can support a weight of approximately 2335 lbs whereas that same tire as part of a rear set of duals will safely support only 2150 lbs. The tire manufacturers derate the load carrying capacity of a tire in a dual configuration by approximately 9% over that same tire in a single configuration.
Bridgestone/Firestone has two .pdf files on their website that are of great help in understanding all the issues of the need to 4 corner weigh you motorhome, motorhome tire care, proper tire inflation, etc.
A) Click on the link below for a 14-page information brochure on Tire RX for Light Trucks, RVs, Mini-buses & Ambulances:
http://www.trucktires.com/bridgestone/u ... ochure.pdf
B) Click on the link below for a 6-page information brochure on How to Weigh Your Travel Trailer or RV:
http://www.trucktires.com/bridgestone/u ... ghForm.pdf
In addition, The Tire Rack has a website containing a wealth of information on tires and tire care.
C) Click on the link below to connect to their website:
http://tirerack.com/tires/tiretech/tiretech.jsp
Please notify via E-mail any inoperative links to: bfadmin-2@bornfreervclub.org
Bill Hemme
Spencer, IA 51301
whemme@earthlink.net
The first attachment below is a table from Michelin of tire inflation pressures for various size RV tires. The second attachment is a simple to use tire inflation graph that can be used to determine the desireable inflation pressure to use for each of your tires based on the actual weight on each of the four corners of your coach determined by an actual weighing on a good truck scale.
Note that the weight that can be supported by a tire at a given inflation pressure in the rear dual configuration is less than that same tire can support with the same air pressure when mounted in a single configuration as a front tire on the vehicle.
For example, a single front tire inflated to 65 psi can support a weight of approximately 2335 lbs whereas that same tire as part of a rear set of duals will safely support only 2150 lbs. The tire manufacturers derate the load carrying capacity of a tire in a dual configuration by approximately 9% over that same tire in a single configuration.
Bridgestone/Firestone has two .pdf files on their website that are of great help in understanding all the issues of the need to 4 corner weigh you motorhome, motorhome tire care, proper tire inflation, etc.
A) Click on the link below for a 14-page information brochure on Tire RX for Light Trucks, RVs, Mini-buses & Ambulances:
http://www.trucktires.com/bridgestone/u ... ochure.pdf
B) Click on the link below for a 6-page information brochure on How to Weigh Your Travel Trailer or RV:
http://www.trucktires.com/bridgestone/u ... ghForm.pdf
In addition, The Tire Rack has a website containing a wealth of information on tires and tire care.
C) Click on the link below to connect to their website:
http://tirerack.com/tires/tiretech/tiretech.jsp
Please notify via E-mail any inoperative links to: bfadmin-2@bornfreervclub.org
Bill Hemme
Spencer, IA 51301
whemme@earthlink.net