On the chart below it would be at 95 pounds. The corresponding required PSI is 95. WHEN TO CHECK RECREATIONAL VEHICLE TIRE PRESSURE For optimum performance and handling, it is important to not only establish the proper inflation pressure, but it is also important to regularly inspect recreational vehicle tires for cuts, snags, and penetrations. If your recommended tire pressure is near the maximum pressure rating for the rim, we recommend moving up in tire volume. Our tire calculator makes this happen for you. The corresponding required PSI is 95. The tire pressure is important for comfort and safety. luggage. My gvwr is 29,500 and the gvcr is 33,000 pounds. See the MICHELIN® X ONE® Difference. Running the wrong tyres or incorrect pressures can cause caravan swaying, warns Caravan Council of Australia. Tow your caravan for 30-60 mins at highway speeds. Goodyear RV Tires (Including ST Tires) Goodyear Truck Tires (Including 17.5" Tires) Bridgestone Truck Tires. The fuel economy usually breaks when you exceed 50 mph. The rear axle weight is 17,160 so divided by two would be 8,580 per end. Check your van's tyre pressure again to see how much it changed (it should be 4 psi higher) Let the van's tyres cool down (e.g. Fit the tire pressure gauge to the stem and read the pressure level. In which case applying this "rule" is not recommended. Even 7 psi (0.5 bar) difference from the vehicle . Since 1926, Firestone Complete Auto Care has offered drivers expert tire repair to help them get back on the road sooner and safer. 3. The recommended PSI should not be confused with the . For instructions on how to weigh a recreational vehicle, see pages 12-14. Never let gas out of a hot tire. The TireMinder High Precision RV Gauge (MODEL #: TMG-AAA-RV) offers an incredibly accurate 1 PSI precision level and premium all metal construction. Always be careful to check tyre pressures when the tyres are cold. Using the Load Range Chart, the 117/112 load index equates a load capacity for a single tire of 2,833 pounds and a load capacity of 2,469 pounds for two tires. For most travel trailers, the tire pressure is mostly between 40 psi to 65 psi. Here's how: 1. Quick answer: Driving from Death Valley to Denver will result in less than a 3 psi increase in tire pressure IF there are no other changes. Tires are among the biggest investments your fleet will ever make. If calculated pressure exceeds tire's rated maximum, choose a wider tire. Send a Text or Whatsapp: 07451277211 Normal Hours: Mon - Fri 8am - 6pm Out of Hours: 24 Hour Emergency Service Home; Tyre Info. Drive Slow. For additional assistance, please contact our Consumer Relations Department by email or phone at 800-442-8696 (6:30am to . 0.08955 x (1800 / 4) = 40.29 PSI (inflation factor times one-quarter of the weight of the caravan) So the correct tyre pressure is 41 PSI Top Tip As a rule of thumb, the inflation pressure of a hot tyre is usually about 4 PSI higher than when cold. In this case it would be 4,610 pounds. Take note on duals tire axles you got to double the 2,778# rating of the tire and then divide your axle weight. These can be found in several places: Your vehicle's handbook. This allows the RV owners to check the pressure of the inner and outer dual wheels. Early in the morning is best. This range is depended on the weight of the trailers as most of the trailer weigh in between 1500 . High heat on a tire is the main issue that leads to a tire blow out. Also, the psi of the new tires should not be less than the number mentioned on the trailer's tag. You should check your tire pressure before every long . To make checking the tire pressure easier and more accurate, Michelin recommends that the RV owners purchase a quality truck tire pressure gauge with a dual-angled head. Here it is as a simple math calculation: The weight rating on the tire multiplied by the number of tires on your trailer = the weight capacity. And look up the required pressure on the DUAL chart. Calculate the pressure using your RV's axle weight and tire load charts. Maintain mated duals at equal inflation pressures Don't bleed air from warm tires to reduce pressure buildup Don't inflate tires to cold PSI rating beyond rim specifications Tyres for speeds over 240 km/h may be . Truck Tire Inflation Tables. Index of vehicle manufactures for tyre pressures, torque setting data and tire sizes. B.F. Goodrich Truck Tires. Features. 50,935. First, remove the caps from the valve stems. Insert tire pressure gauge into the valve stem on your tire. A good RV TPMS will monitor both pressure and temperature. The psi value listed on the tire wall is the maximum pressure at which the tire will be able to safely support its maximum load rating. If a driver reduces tire inflation pressure, they are solely responsible to ensure that the load capacity of the tires is . Reducing inflation pressure from that specified by the manufacturer reduces load capacity and changes handling characteristics which can be dangerous. 1. As a general rule of thumb a person should always inflate trailer tires to the max as listed on the tire sidewall for maximum load carrying capadity. Generally, Service Description is not shown on such tyres. Under inflated tyres are prone to overheating use more fuel and wear out more quickly. Stand well back from the tire during inflation due to the risk of explosion of the tire/wheel assembly. 60 / 670 = 0.08955 (Max Pressure for tyre divided by load rating) 0.08955 x (1800 / 4) = 40.29 PSI (inflation factor times one-quarter of the weight of the caravan) So the correct tyre pressure is 41 PSI Top Tip: As a rule of thumb, the inflation pressure of a hot tyre is usually about 4 PSI higher than when cold. For example, 90psi in a 25mm tire will feel the same . Take an axle weight, divide it by the number of tires on that axle. Step 1. For actual speed capabilities and load capacities, consult the tyre manufacturer concerned. The sticker your looking at was for the OEM installed tires, and was likely the maximum pressure rated for that tire. At 0° F, the 295/75R22.5 size will be about (14) psi lower pressure compared to 70° F. * Beware of vehicle placards with recommendations below 30psi. Remember, this is not what you have to set, its what the average numbers look like. As Brain states, tyre pressure should be set as per the caravan manufacturere specifications. For a dual application take the weight on the heaviest end of that axle of 9200 lbs. The correct inflation pressures for your motorhome's tyres can normally be found in the manufacturer's documentation or on a sticker on the vehicle. That is, most travel trailer tires will be inflated with PSI falling in this range. Posted By: wny_pat on 07/29/10 08:44am. In this example, the light truck tire has a load index of 117/112. Motorhome; Fleet Operators; Truck; Van; About Tyres. Press Calculate and see if your tire inflation has increased or descreased from previously set value. The Caravan Council of Australia is warning caravanners that the wrong tyres fitted to their van, or the right tyres inflated to the wrong pressures, can lead to caravan swaying and even roll-overs. The starting tire inflation pressure is 45 PSI. Pure Tyre 01603 462959. Tire Inflation Tables & Codes. Front tyres will need an extra 25 kPa (4 psi) above normal. Car tyre pressure is a measurement of how much air is in your pneumatic tyre, and ensures the tyres wear evenly and maintain the correct level of grip on the road surface. Use a calibrated gauge. 5,309. How to Set RV Tire Pressure. I weighed mine on a truck scale. Load & Inflation Table Application Guide. This equates to 1.23, or 75 divided 60.8. There are 3 methods to determine the correct tire pressure: Use the Max pressure found on the tire's sidewall. According to a pdf downloaded from Michelin's website, the closest air pressure shown for each of these weights works out to 75 psi, which . The psi value listed on the vehicle's sticker inside the door jamb or manual is the psi the manufacturer recommends in order to . Use a clip-on air hose and extension. Check out our FREE tools and discover everything you need to know about tires Bar Opt for a solid product from a reputable company. For manufacturer's load / inflation charts not listed here, contact your local tire dealer for that brand tire. Your trailer will be listed as a single axle, even if it's two or three together, so if you have a triple axle trailer, divide the axle weight by six tires. To inflate your tyres, use a portable air compressor or head to your nearest servo. Step 2. Step 1. Setting tire pressure is as simple as accessing an air pump and using a device to check the reading. | Tire Rack. 2. Different . The resources below offer additional information to help you understand and apply the results of your SmartWeigh service. tire load limits (lbs) at various cold inflation pressures (psi) used in normal highway service* tire load limits (lbs) at various cold inflation pressures (psi) highway steer and all position tread designs used in normal highway service* tire size max speed rating inflation pressure - psi mph 25 30 35 40 45 50 55 60 65 70 75 80 95 110 Monitoring the temperature of your tires is crucial in preventing tire issues. Light and Standard Load tires have a maximum capacity pressure rating of 35-36 psi and Extra load tires have a maximum capacity pressure rating of 41-42 psi. Tyre pressures can be found in your vehicle's handbook, are usually stamped in the sill of the driver's door and can sometimes be found inside your fuel cap. The maximum allowed pressure listed on a tire's sidewall can be higher however. Tire Pressure Calculator - by Full Weight. There will be different settings for fully loaded vehicles, so please remember to check these, especially if carrying extra passengers or any additional weight, i.e. pressure. In fact, it is not uncommon for a difference of 1,000 pounds or more to exist between sides on the same axle. When the ambient temperatures are low in the winter, tire pressures will be lower. 11R24.5 285/70R19.5 10R22.5 11R22.5 12R22.5**** LT235/85R16 LT215/85R16 LT225/75R16 265/70R19.5 215/75R17.5 225/70R19.5 . Some tires list 44 psi and many higher speed tires will list 50-51 psi. Always inflate tire/wheel assemblies in an OSHA approved tire safety cage. Underinflation, ambient temperature, and even locking brakes can create high heat on a tire. contact-us-white. Yokohama always recommends for drivers to follow the placard pressures. Purchase a trusted tire pressure gauge. First, remove the caps from the valve stems. Remember, properly inflated tires run cooler. Tyre manufacturers have recommended tyre pressures, and car manufacturers actually have a placard (or tyre . To calculate the diameter of a metric tire in inches: (#1 x #2 / 2540 x 2) + (#3) Example: 285/75R16 (285 X 75 / 2540 x 2) + 16 = 32.8 inches tall. Your tyres should be rated for at least 90% of the MTPLM (Maximum Technically Permissible Laden Mass) of your caravan or trailer. Other means go wrong like leftclicking. pkunk wrote: But what is strange comparing chart to Goodyear's 14 ply to Hankook 16 ply 275 70 22.5 Goodyear tires for same pressure show a higher load rating. Thus, this pressure should be considered the tire's maximum inflation limit. Your trailer weight. When tire damage strikes, leave it to the expert technicians at your local Firestone Complete Auto Care to fix things right the first time. Both front tires would use this pressure. Do be aware that there are different pressures for . The recommended minimum psi is 35psi. It's that easy! For a dual application take the weight on the heaviest end of that axle of 9200 lbs. This is the maximum weight you can put on the trailer tires. In other words 95 psi will support up to 5510 lbs. The number 1 rule to improve gas mileage is to control speed and drive in the economy range. Depending on the manufacturer and engine, each vehicle offers the best fuel efficiency at a different speed. It has two primary impacts: grip and rolling resistance. 11R24.5 285/70R19.5 10R22.5 11R22.5 12R22.5**** LT235/85R16 LT215/85R16 LT225/75R16 265/70R19.5 215/75R17.5 225/70R19.5 . If you are using your vehicle to carry an additional load or weight, always consult your vehicle handbook for the correct laden pressure. But with both sets the pressure number is right . How to Set RV Tire Pressure. Frequently Asked Questions; Tyre Pressure Monitoring System (TPMS) What Are Run Flat Tyres; Tyre Repair And Spares; Car Tyre Load And Speed . overnight) If the the change was less than . Call (01603) 462959. Step 2. The placard can be located on the door edge, doorpost, glove box, or fuel door. This answer is the optimal pressure for that tyre. 7,000 divided by 4 = 1750 (round up any fraction) On the LT235/80R17 tire inflation chart the next weight range is 1870 (Read the "DUAL" line.) Here, the average economy speed is between 35 to 50 mph. Having a profile lets you save preferred tires, technology, services and dealerships. Yes, that is a good pressure chart for Hankook----. Divide the maximum tyre pressure by the load rating of your tyre and then multiply this answer by the actual load each tyre is carrying. The recommended tyre pressure for the rear axle of a motorhome running on the MICHELIN Agilis Camping is 80 psi. You can also obtain advice on your tyre pressures from your vehicle or tyre manufacturer. The European Tyre and Rim Technical organization. Drive Axle: 12,840-lbs. Firestone Truck TireData Book. Stand well back from the tire during inflation due to the risk of explosion of the tire/wheel assembly. Once you have that number, you can refer to your tire manufacturer's conversion chart to find the ideal RV tire pressure for your model, no matter if you use a single or dual system. Warning! Tires are among the biggest investments your fleet will ever make. (If you are using a digital tire gauge like the one pictured, the gauge should begin reading the air pressure immediately. Please note that this tyre pressure calculator is configured for on-road/ highway towing only. For off-road conditions including corrugations, tyre pressures will need to be adjusted to suit the conditions. Now for the engineers and . In case if you are replacing an old tire, you should check whether the psi on the new tires is similar to the old ones. Weight Savings Calculator. Should you need new tires, we carry the world's best tire brands across . Yokohama's Inflation Pressure Calculator will help you maintain them with the proper tire inflation. In the absence of this information, this calculator may be used for guidance on tyre inflation pressures. Its reinforced construction and the use of higher pressures is designed to cope with continual heavy loads sometimes found on motorhomes and can help with wear pattern issues if lower pressures are used particularly on the rear axle. Also max air pressure is lower on Hankook tires. So it isn't a big deal. 1. It features replaceable "AAA" batteries (included), two interchangeable heads (straight and 45°), a bright LED backlight, a "no sweat" custom grip, a front facing flashlight and a 5 year . 225/50 ZR 16. PSI is a formula that is calculated on your weight & your tire manufacturers tire charts & it's very important to know how to do the. For a complete list of published load and inflation tables, refer to the following organizations: The Tire and Rim Association, Inc. Michelin RV & Truck Tires. Inflate your caravan's tyres to the cold tyre pressure that's found on your van's compliance plate or user manual. The reason the capacity for two tires is lower than a single tire is to make sure that the vehicle can continue to . Search By Vehicle Number Plate. My front axle rating is 10,500 pounds and the rear axle . Fit the tire pressure gauge to the stem and read the pressure level. This is commonly expressed as PSI, or pounds-per-square-inch. Keep your tyres inflated to the correct pressure by using this tyre pressure calculator and by following the instructions below. To order up to 12 Mixed SensorEEZTire Tire Pressure Monitoring System - 12 Mixed Sensor (TPMS 12MIX) incl. After download open in Excell or Open office Calc on your computer . Tire Issue #2: High heat. Your tyres should be rated for at least 90% of the MTPLM (Maximum Technically Permissible Laden Mass) of your caravan or trailer. To select the proper load and inflation table, locate your tire size in the following pages, then match your tire's sidewall markings to the table with the same side-wall markings. In short, you need to check the pressure before and after adding air to ensure the right level. Check your tires "cold"—before you've driven or at least three hours after you've driven. Enter the current weather temperature. And the easier it is to check the pressure, the more that . The recommended pressure is set by the vehicle manufacturer and varies from model to model. Number of tires on the rear axle: 4 (dually axle) Truck tire size: LT235/80R17. 2. Goodyear recommends that tires be inflated to the vehicle manufacturer's recommendations as found on the Vehicle Tire Information Door Placard or the Vehicle's owner's manual. It can prevent motorhome tire failure. The last number is the load rating of the tyre, this is required for the calculation, it can range from 60 to 130 which equates to a maximum load per tyre of between 250 Kgs to 1900 Kgs. For the front axle, that works out to an average of 3,140 per tire (I understand weighing each corner would be better, but nobody in the area can do this.) If the tyre size shown does not match the tyre size on your vehicle . Warning! You can see that 85 psi will support up to 9380 lbs. Use our online Weight Savings Calculator to see how the Michelin X One tire can improve the bottom line for your commercial trucks. …31x10.50R-15 C. LT-sized tires featuring section widths of 305mm/12.50" or wider have their maximum loads and cold tire pressures rated at reduced maximum load pressures. Enjoy access to exclusive offers and easy login to all Bridgestone Commercial websites. What Are Load Ranges / Ply Ratings? Remember, as tire size and therefore volume increase, you can decrease tire pressure. Failure to During a trip heat build-up will increase pressure, giving an incorrect reading. Just put your RV on the scale and see your precise readout! In other words 95 psi will support up to 5510 lbs. Michelin RV tires - Guide for proper use and maintenance. The Speed Category markings shown below indicate tyre speed capabilities above 240 km/h and are included within the tyre size designation e.g. Firestone Truck Tires. Both front tires would use this pressure. The question of tire pressure change due to altitude (elevation) has been brought up on occasion so I guess it's time to answer that question. Just type in any tire size and click calculate. Recommended Tire Air Pressure. Use the values on your RV's tire information sticker. In our example, this results in 75, or 2,205 minus 2,130. The tyre pressure should be around 42psi, depending on the load in your van and your specific RV as some smaller vans can run at a lower psi. It's science & math. To maintain the ideal travel trailer tire pressure, you should ensure that both ends of the axle have the same inflation pressure. Tandem Axle: 65 / 800 = 0.08125 (Max Pressure for tyre divided by load rating) If calculated pressure is below tire's safe minimum, choose a narrower tire. Enter your vehicle number plate below, click 'Search' and we will find the tyre pressure for your vehicle. Dual Rear Tires Formula: (Axle Weight / 2) / (Tire Capacity weight x 2) x Tire Max Pressure = Inflation Pressure. A correctly inflated tyre improves safety, is more economical in use and is better for the environment. After Your Appointment. There is no calculation you can use to determine your air pressure without individual wheel weights, anything else from an axle weighing is still just a guess. #2 The most accurate way to find out the recommended tyre pressure is to contact the tyre manufacturer,tell them the axle weights,mgvw and tyre details,then ask them for recommended tyre pressures. By keeping your tyres at their correct pressure, you'll reduce your running costs. May 15, 2012. To find the optimal pressure for your van, check your tyre placard or caravan book - this should have an indication of correct pressure for weight. If your tire is rated for higher inflation pressures, a special gauge will be required designed for larger tires. 1,746. AG25 = 55psi (32-40mm Tire), 50psi (41-50mm Tire)M Series & AM30 = Varies per Model. In the motorhome tire pressure calculator map is the pressurecalculation with temp spreadsheet wich you first have to download to your computer by RIGHTCLICKING and then choose DOWNLOAD. In short, you need to check the pressure before and after adding air to ensure the right level. #3. Check tyre pressures regularly to ensure your safety. Stamped into the sill of the driver's side door. While acknowledging swaying is caused . Use a clip-on air hose and extension. For control of your RV,it is critical the tire pressures be the same across an axle, while NEVER exceeding the maximum air pressure limit stamped on the wheels. The last number is the load rating of the tyre, this is required for the calculation, it can range from 60 to 130 which equates to a maximum load per tyre of between 250 Kgs to 1900 Kgs. Always inflate tire/wheel assemblies in an OSHA approved tire safety cage. First, you need to find the recommended pressures for the tyres. Inside the fuel cap. For Light Truck and 4x4 tyres, use 6psi as a guide, but rough and corrugated roads cause more flexing and your tyres may rise more the 4 or 6psi. Weight Savings Calculator. Hankook Truck Tires. Take a couple of minutes to enter your information below and you'll be on your way to optimizing your tire performance! To determine how much tire pressure to add, subtract the weight of the new tire at pressure from the weight of the old tire at pressure. And look up the required pressure on the DUAL chart. You can see that 85 psi will support up to 9380 lbs. Shell Gas Station. (Mine was 1360 x 2 = 2720.) Yokohama's Inflation Pressure Calculator will help you maintain them with the proper tire inflation. Our caravan tyre pressure calculator gives you the correct pressure for your caravan tyres. (8,820 / 2) = 4,410# / (2778# x 2 = 5,556#) = 0.79 x 80 = 63.4 PSI. Tires with a lug (interrupted tread, typical for adverse weather conditions) design will generate higher heat compared to a straight ribbed tread.