nkgunner Report post Posted April 2, 2015 Hi, Just had the 2005 Country Coach Allure 430 DP weighted today and here are the weight values. Air bag shocks. Front Axle: R Front = 5830: L Front = 5500: Total Front Axel = 11330 Rear Axle: R Rear = 9760: L Rear = 9860: Total Rear Axel = 19620 Total 30950 Tires are Michelin XZA2: 295/80R22.5: DOT 2713 GVWR = 34200: GCWR = 44200 GAWR = 14200: GAWR = 20000 The Toad is a 2012 Honda CRV: Front Axle: R Front = 1050: L Front = 1000: Total Front Axel = 2050 Rear Axle: R Rear = 750: L Rear = 700; Total Rear Axel = 1450 Total Axle Weight CRV = 3500 I am confused as to the tire pressure I should be running. Load & Inflation table from Michelin shows the following: Single Axle: 80 = 11320: 85 = 11880: 90 = 12440: 95 = 12990: 100 = 13540: 105 = 14080 Dual Axle: 80 = 20060: 85 = 21060: 90 = 22060: 95 = 23020: 100 = 24000: 105 = 24040 What do you folks feel the best pressure for the best ride would be based on the weight? Thanks Guy's! George 2005 Country Coach Allure 430 DP Douglas MA/Beverly Hills FL Share this post Link to post Share on other sites
wolfe10 Report post Posted April 2, 2015 George, The Michelin tire chart shows the MINIMUM PSI for a given load. Most add 5-10 PSI to that minimum to account for those large shopping trips, times tanks will be full, etc. And, all tires on an axle have PSI based on the heavier wheel position. And, COLD means before driving at whatever the ambient temperature is-- not at a given temperature. I pulled out my Michelin RV tire guide (picked it up at the Michelin booth last week in Pomona): Front axle: 5,830 minimum PSI is 85. So, assuming this is the heaviest your front axle weighs (i.e. full fuel and tanks in front) I would run 90-95. If tanks mounted in front not full, calculate with them full. Rear axle: 9860 minimum PSI is 80. So, assuming this is the heaviest your rear axle weights (same disclaimer as front axle), then 85-90. Share this post Link to post Share on other sites
nkgunner Report post Posted April 2, 2015 Hi, I filled the gas tank before we arrrived at the weight station and I filled the propane tank, water is at 30%. There will still be some items to go in but not too much.. That is pretty much what I was thinking on doing. It was because of reading how "low tire pressure" can cause major problems I was not sure. I am going to go with 95 Front and 90 Rear or 95 Rear... Thanks! Share this post Link to post Share on other sites
tbutler Report post Posted April 3, 2015 Don't forget that you may be traveling with the waste tanks full and the rear axle weight should be adjusted for full tanks if they weren't full when you weighed. Water weighs 8.3 puonds per gallon so a tank with 50 gallons waste (mostly water) would weigh 415 pounds. Every 50 gallons in your waste tanks adds another 100 pounds to each rear tire. For our coach that is 200 pounds per tire. I add the 5 to 10 percent for the errors in tire gauges and to allow for minor temperature differences from day to day. I calculate in the heaviest possible weight (considering full tanks, more groceries, extra clothes, etc) when looking up the data from the tire chart. Share this post Link to post Share on other sites
