Alternatively you can download the pdf version of this tyre pressure conversion table to save or print out. Featuring BFG, Firestone, American Classic and Coker Tires at discount prices. 1 psi = 1 lbf/(1 inch)^2 = 4. In other countries, the SI unit Pascal is used instead, and 1 PSI is equal to 6,894. 10 1,903 35. See our car tires, SUV tires, truck tires and more. Discharges among cases meeting the inclusion and exclusion rules for the denominator. The thing is, unlike when tires drop notably below vehicle specification, your TPMS. Be sure to check with your Local Tire Dealer to choose ply rating that can withstand weight your are carrying and also note recommendations are SL rated meaning Service Limited to Agriculture Usage and that tire cannot be used in applications in excess of 30 mph.  However, somehow the sticker on my M3 has 45 PSI even though it's delivered only a few days ago. Just because your RV’s tires say they can handle a certain PSI doesn’t mean the listed PSI is the ideal one for your vehicle. If you're shopping at Discount Tires take a look at these. PSI is listed in the World's largest and most authoritative dictionary database of abbreviations and acronyms PSI - What does PSI stand for? The Free Dictionary. For every change of 10 degrees in the outside temperature, tire pressure changes about 1 psi. Keep in mind that many vehicles have different tire pressures on the front and rear axle. So, even 5-7 psi makes a difference. According to a local news report, three of the tires were inflated between 21 and 24 pounds per square inch (psi), though the recommended psi for the driver’s car was 32. Sorry for that misinformation I assumed (bad idea that "assume" ). But the actual tire pressures should never be higher or lower than the maximum and minimum inflation pressures marked on the tire sidewall. Check the PSI reading. My friend who works at Discount Tire said the recommend tire pressure is for under a load but it sounded like BS to me. In other countries, the SI unit Pascal is used instead, and 1 PSI is equal to 6,894. PSI rating on the tire is NOT what you should be running your tires at. The air is provided by a compressed air system at a pressure of 120PSI (I plan. This portable high volume air compressor fills tires in three minutes or less. The higher the number, the taller the sidewall; the lower the number, the lower the sidewall. A tire-pressure gauge displaying bar (outside) and psi (inside) A tire-pressure gauge , or tyre-pressure gauge , is a pressure gauge used to measure the pressure of tires on a vehicle. The tire is designed to handle 43 PSI, which means on road use can take advantage of lower rolling resistance of a firm tire, while off road performance can be enhanced by reducing pressure. According to the U. Enter a value in either field and click anywhere outside that field. I talked to a tire guy where I bought 2 new tires last summer because I hit a pot hole and broke the cords in both tires. In wet conditions, you may want to run 10 psi less than usual for improved traction. Since the tires were at 31 psi cold, and the chart does not go below 35 psi, the tires were dangerously under inflated. Even on dry roads, bald tires are more prone to tire failure and more easily punctured. Passenger tires are usually unmarked because they have a standard 4-ply rating. 50 waste tire recycling development fee on the sale of each new motor vehicle tire. PSI Medical abbreviations defined. It is intended to be used for temporary use only. Learn about our solutions to maximize your warehouse efficiency. Lowest prices for the best tires and wheels from taskmaster. The PSI you should actually run with an unloaded truck is much closer to what will be posted on the sticker on your door. That's the basis of the requirements for TPMS in newer. Engineered to expel water and reduce noise under a variety of road and terrain conditions. Is 40 psi to high?. From what I've heard, the "max psi" on the tire is not what you're actually supposed to fill them to, unless you're carrying heavy loads that is. See chart below. Hoosier provides spec tires to various national and regional series that promote Sprint Car, Late Model, Modified, Midget, Northeast Modified, ATV, Silver. The acronym PSI stands for "Pounds per Square Inch," and is the common unit of measurement for pressure. Compare the most helpful customer reviews of the best rated products in our light truck suv tires store. Does it mean that it was manufactured before Tesla switched to 42 PSI. Is 40 psi to high?. A spinning tire at a speedometer reading above 55 km/h (35 mph) can be capable of disintegrating a tire with explosive force. Bias Ply Tires; Radial Tires; Bias Look Radials; Redline Tires; Blackwall Tires; Whitewall Tires; Brass 1910s & Older; Antique 20s-40s; Classic 50s-60s; Classic 70s. Modern tires commonly are higher pressure, look at your sidewalls. , and the actual weight on each rear tire was 2,020 lbs. The thing is, unlike when tires drop notably below vehicle specification, your TPMS. Optimal tire pressure for your golf cart will vary by make and model. 5 23/32 6320 80 9. The Convenience Spare is designed to use minimal trunk space. The tire pressure monitoring system (TPMS) control unit in 2007 to 2013 Honda CR-Vs, like the 2011 above, monitors all four tires and the system itself. Powerful and portable, the AAA 12-Volt 300 psi Tire Inflator uses a 12-Volt vehicle cigarette lighter to quickly inflate a car, truck, or bike tire. Yes manufacture numbers are great but they aren't perfect for all parts of the World. For 700 x 25c tyres, minus 10-20 psi. Both of these pressures are below the maximum pressure for my tires, which is 42 psi. Since the tires were at 31 psi cold, and the chart does not go below 35 psi, the tires were dangerously under inflated. Go Kart Tubes, Locknuts, Low Pressure Tire Gauges and Valve Stems. After I wrote it, I wondered if it was correct or not but wasn't able to locate the detail to confirm it. 198 definitions of PSI. I run the Meiser 15 psi on fatbikes, but the 30 psi on all other mtn tires, normal and +. 205/55R16 94H If the service description on your new tires is higher than your stock tires, you're fine running the tire pressure listed on your vehicle's placard. For every 10 degrees of increased temperature, your tires can be expected to increase by 1-2 pounds of pressure. Usually referred to as a rate of water flow in machinery with a fast output of water such as a pressure washer or pressure washing machine tool accessory. The higher the number, the taller the sidewall; the lower the number, the lower the sidewall. When measuring tire pressure, the PSI is equal to the pounds of air pressure being exerted on a 1-square-inch area within the tire. It is sometimes used to track the response to therapy in men with prostate cancer. I wonder why my car has 45 PSI in the sticker. Lowest prices for the best tires and wheels from taskmaster. The Carlisle Turf Master is a lawn tire The Carlisle Turf Master is a lawn tire specially designed for those looking for maximum traction and minimal lawn wear. Radial tires have plies that run perpendicularly across the tire and belts (often made of steel) running below the tread around the tire’s circumference. As temperatures get colder, drivers may notice an impact to their tire pressure, and their TPMS light may be illuminated on the dashboard. So really what is experienced in the time interval is sort of an average pressure. When tires are changed a shop will mark them "LR,RR" etc. Another tire specialist stated same thing and that the tire was a bad tire. After match-mounting by either of the above methods, the tire/wheel assembly can be balanced. That’s because pounds per square inch (PSI) is the most common unit for measuring pressure in the U. These tires have maximum loads at inflation pressures of 50, 65 and 80 psi respectively and are not load-downgraded for truck use. For a "plus 0" (same wheel diameter) swap to a 35x12. In other words, the 44 psi you refer to is the maximum inflation of the the tire at its maximum load rating. What should be the recommended tire pressure for C-Rated tires. Printer friendly. Hence the psi on your tires shouldn't be lower than. For example, a bicycle tire pumped up to 65 psig in a local atmospheric pressure at sea level (14. For those who like their riding spiced with a bit of dirt, adventure riding encompasses the widest terrain variety in motorcycling. Does it mean that it was manufactured before Tesla switched to 42 PSI. Ride change isn’t significant. If you change to a different tire size or a even a different brand, the recommeded factory tire pressure will have to be adjusted to what will work with the new rubber. On a regular trailer tire you would inflate it to the max psi indicated on the tire because trailer tires are built with a thicker sidewall to handle more vertical load. I think most passenger cars can easily tolerate a difference in tire pressures of 2 psi above and below recommended. I ran my Geolanders at 38F/38R psi, which made the ride rougher, but seem to handle better. I'm on my way to Daytona & the bike seems a little lose when I'm around big trucks. It doesn’t mean 97 pounds, because it’s actually an assigned value that corresponds with its “actual” load capacity found on a load index chart. Next, take that result and divide it by the pounds per psi of the new tire. I have a 10-month old 70D 19" Cyclone and regular suspension. com! 'Pounds per Square Inch' is one option -- get in to view more @ The Web's largest and most authoritative acronyms and abbreviations resource. It is estimated that the tire pressure will decrease as much as two pounds for every ten degrees temperature drops. 35 CFM air flow. If necessary, replace the tire with your spare tire and visit your local Tires Plus store for needed repairs or replacement. Example: A balloon has a pressure of 30 psi. Show Full Signature Nothing makes you feel more alive than taking a bee to the face at 60 mph. Lexani tires made for real car enthusiasts who are looking for the most efficient and comfortable tires at a price that won’t break the bank. This causes increased air pressure, which expands the inner tire’s diameter. In every Bar. Proper tire inflation requires weighing your vehicle with the load you’ll be carrying, and filling to match that number. View Passenger Tires. 7 psia) will have a pressure of 79. There are several ways (besides a puncture) a tire can lose air pressure. H andgun: PSI: R ifle: PSI: R ifle (Cont. PressureStat is an asset management solution for operations of any size. Optimized tread pattern provides year round traction without sacrificing the quiet, comfortable and luxurious ride. Normally, you would need 12 psi in front tire and 12 psi in the rear one. TIRE REPAIRS. The normal pressure of a tire is about 32 PSI. The Carlisle Turf Master is a lawn tire The Carlisle Turf Master is a lawn tire specially designed for those looking for maximum traction and minimal lawn wear. Note: 35 psi is the assigned "maximum load" pressure for standard load tires and 41 psi is the assigned "maximum load" pressure for extra load tires. However I ran mine at around 65 psi with 4100 lbs on 4 tires, so 1025 per tire. I keep them close to that. Example of load index based on tire size: A 520/85R42 with a 157 LI and an A8 speed symbol has a maximum load of 4125 kg (9100 lb) at the required cold inflation pressure of 159 kPa (23 psi) and maximum speed of 40 km/h (25 mph). PSI Medical abbreviations defined. After I wrote it, I wondered if it was correct or not but wasn't able to locate the detail to confirm it. Pressure Washers, 60 psi (4. Tires with aramid beads utilize high-strength kevlar fibers that are spun into the bead to provide ultimate durability while also being lightweight and foldable. How Do I Find the Correct Tire Pressure for My Car? measured in pounds per square inch, or psi. the light because under inflated tires mean. You can inflate some models of these tires up to 95 psi, but 60 to 80 psi is a more common recommendation. Bring some safety gear and a sandwich, but please don't forget the CO2 Cartridges. Trailer Towing - ST Tires vs. 8" contact patch @ 35psi. ARAMID BEAD The area of the tire where it contacts the rim is called the bead. Common questions and common answers. What Does the Tire Pressure Warning Light Mean? The tire pressure light warns you when one or more of your tires is low on pressure and needs to be set to the correct PSI. A car designed to run at 35 PSI, may not look like low at 24 PSI, but it is. On the road, on the trail or on the racetrack, you can count on Kenda quality. The tires should be inspected and the tire pressure checked as soon as possible. Grant George skies the Funco Hustler SL, with Sand Tires Unlimited owner Mark Harms riding shotgun. Lower pressure: Using a reasonably lower tire pressure means you'll get the maximum contact patch for acceleration and maximum grip. For your information, psi means pounds per square inch: it is the measurement for estimating the air pressure in your bike’s tires. Modern tires commonly are higher pressure, look at your sidewalls. I run the Meiser 15 psi on fatbikes, but the 30 psi on all other mtn tires, normal and +. It would mean the tire was below sidewall when cold but it would warm up quickly and not go above sidewall. The tire sidewall is the MAXIMUM psi of the tire weight it's components can withstand, and the door jam is the PREFERRED psi based on the stock tire. That's because pounds per square inch (PSI) is the most common unit for measuring pressure in the U. have driven 300 Miles. You also get a more stable tow since there is less flex in the sidewalls of the tires. Led by a European technology team with over 80 years of experience in tire R&D and manufacturing, Sentury Tire has come roaring out of China to establish a presence in more than 150 countries and regions worldwide. What do the size markings on bicycle tires mean?. This is the Tire Pressure Monitoring System or Tire Pressure Monitor warning light symbol. Pressure in tires is usually measured in units of psi - pounds per square inch. These are gaining in popularity. Tires using this tread are designed to grab the soil for heavy-duty work situations. Best Deals and Best Selection of Schwalbe touring tires. Regardless of the match mounting method, proper lubrication is a must. very harsh drive feel every dent. How much air do you guys put in your tires? Do you inflate to what the tire says (or close to it), or do. Depending on your weight and the terrain, you can run lower tire pressures—down to 20 psi (pounds per square inch)—for better traction without pinch flats. Don't get confused though, if you put a different type of tire on your vehicle you may need a different psi. The aspect ratio is the relationship of a tire's sidewall height to its section width, expressed as a percentage. How to say PSI. Tire manufacturers mark the psi range recommended for their tires. The cons? The installation process is a little more complicated, as is fixing a tubeless flat. Information about psi in the AudioEnglish. But in exceptional cases, you may have a-two-pound adjustment up or down and stay within the range from 10 to 14 psi. Normal tire pressure is 30-33 psi. Meaning of psi. The following are all of the sizes and specifications for the Integrity ®. Ensure tires are properly inflated for increased fuel economy, safer roadside handling, and longer tire life with tire chucks and inflators from Grainger. The rim size is 700c (this designation is a relic of a sizing system that's no longer used. Slick Tires, Offroad Knobby, Turf Saver, Snow Hog, Ribbed, Diamond Tread. That’s why Dunlop offers everything from the all-new Trailsmart adventure-touring tire to DOT-approved full-knobby tires. It is also used as Flat Tire Monitor (), which seems redundant. Underinflated tires, for instance, can hydroplane easily. Tire pressure gauges can be purchased for a few dollars at most big box retailers. With these things in mind here are the top 10 best digital tire pressure gauges in 2019. have a 08 national tropical motor home, only had it 6 mos. I think most passenger cars can easily tolerate a difference in tire pressures of 2 psi above and below recommended. COMMERCIAL FLEET TIRE DIGEST Information on a Tire Sidewall (what does it all mean) The authoritative guide to reducing commercial tire expenditures from Pressure Systems International, the manufacturer of the Meritor Tire Inflation System by PSIΤΜ There are hundreds of tire manufacturers around the world. Meaning of PSI. Under inflating can be just as damaging in the long run however. Welcome to Tire Tech, Bikerumor's new mostly-weekly series on bicycle tires. Speed Rating (T). Pounds per square inch (PSI) is a common unit of pressure used in many different pressure measuring applications. Pressure unit conversion between psi and pound-force/square inch, pound-force/square inch to psi conversion in batch, psi lbf/in2 conversion chart. Yes manufacture numbers are great but they aren't perfect for all parts of the World. For road tires, the tread pattern is usually cosmetic as even on wet roads, a slick tire is preferable for grip and adhesion. Tech A says that tire pressure will drop 1 PSI for every 10 degrees drop in temperature. tire charts site map main menu all in + out print-revs static max tire psi max side tread sales vehicle overall per load-lb load-lb inflation tire size wall type code family name supplier diameter mile at at pressure p245/70r16 bsw o/o ts8 an1,5 wrangler sr-a good year 29. The psi ratings on the door jam are for what the computer is set to according to factory supplied tires. This is a dumb question, but my mom brought it up and I didn't have a good answer for her. Do I go by the psi on my tire (44) or the psi according to the manual? ? The tire itself psi is 44 psi but on my car door panel the psi is 32 front and the rear 29, seems like it on flat when I go by the car door panel. “It may not seem a lot but let’s say you rode with 27 psi in your rear tire rather than the recommended 32psi for an average sport bike. each at 44 psi and your vehicle weighs 4,000 lbs. 2; The only tire that will work on your existing wheels are the 17. FLO Cycling - Why Do You Use Less Tire Pressure for a Bigger Tire or Wider Wheel? Posted by FLO Cycling at Friday, November 28, 2014 Labels: en , How To/Education During the last several years, bicycle rim width at the brake track has been increasing. In other words it means,height of the tire is 70 percent of the width of the tire R -means it is radial construction. Pound-force per square inch. 5 This listing is for a set of four (4) Tires and Wheels pre-mounted and. So, let's say you check your tire pressure (on a cold tire, of course) in July, when it's 90 degrees out. The 2008 Pontiac G6 has 1 problems reported for tire warrning light comes on when psi is fine. These are gaining in popularity. Passenger tires are usually unmarked because they have a standard 4-ply rating. For all pressure unit conversions, please check pressure converter. While rolling resistance is a real thing, you don't need to run 35psi in order to have efficient travel on dirt with a 2. (Forget about things being “as free as air” — at. "Tires Designed For Champions" Heritage. All WTB tires have recommended tire pressures indicated on the sidewall. For example: a big off road tire may require less pressure than the factory sized tire due to sidewall make ups and load range ratings. Compare the measured psi to the psi found on the sticker inside the driver’s door of your vehicle or in the owner’s manual. PAG recommends 36PSI front and 44PSI rear for my 996 C4. When the TPMS warning lamp on the instrument panel illuminates while driving, it means that the system has detected at least one tire with a pressure below the accepted minimum psi for the vehicle. Remember, boat trailer tires typically need to be inflated to higher psi than tow vehicle tires. put on new shocks plus safe t plus stabilizer better but still feeling all the bumps. I run my Continental Gatorskins 700 x 25c tyres at 80 psi and my Vittoria Corsa Cx 700 x 23c at 100 psi. If you have questions or are uncertain about the tread depth remaining on your tires, take your vehicle to a tire dealer for inspection. You can find the recommended tire pressure (known as PSI) by looking on the tire’s sidewall. Toyota Forklifts is the leader in material handling and industrial lift trucks and equipment. LT Tires Let me begin by saying when it comes to the type of tires to use on a travel trailer or 5th wheel trailer I think there is a lack of information and understanding on the topic. Review: Toyo Tires Open Country R/T Truck and SUV Tire The truck performaned well at this pressure but it was still a little stiff off-road. But never fear, this amalgamation of lights, symbols, and messages is only there to help you. For 700c tires we think the sweet spot is between 100PSI - 120PSI. Over the years, I have seen many methods producers have used to either prolong the life of their tires or prevent the effects of winter storage on the following season. Ideal for lawn mowers the Carlisle Turf Master provides you the traction you need to stay on grassy surfaces without damaging it. I talked to a tire guy where I bought 2 new tires last summer because I hit a pot hole and broke the cords in both tires. General Grabber A/T X. Finding the Right Tire Pressure for Your Car. Pounds per square inch (psi) is a unit of pressure most commonly associated with tire pressure for an automobile or bike tire. A load range ‘C’ tire at 25 PSI might be able to support a load of 990 pounds, while at 40 PSI, that capacity could be 1300 pounds. For example, a bicycle tire pumped up to 65 psig in a local atmospheric pressure at sea level (14. 50-15 6PR R3 GA 110 kPa/310 kPa (16 psi/45 psi) 27x8. com! 'Pounds per Square Inch' is one option -- get in to view more @ The Web's largest and most authoritative acronyms and abbreviations resource. psi is the absolute pressure and psig is difference of pressure with atmosphere. MICHELIN INFLATION CHARTS FOR TRUCK TIRES 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 sidewall markings. In this example, the tire sidewall height is approximately 55% of the tire width. It is defined as the pressure that results when a force of one pound-force is applied to a one-square-inch area. 7 psi + 65 psi). For about 2 months I've been driving at 41-42psi tire pressure instead of 45. In motion, the inner tire’s temperature increases due to in-board brakes and poor air circulation. Lowest prices for the best tires and wheels from taskmaster. Using The Chalk Method for Determining PSI | Interco Tire Learned this in my off-roading days. Probably had a load carrying capacity of around 1800 lbs. Average failure mileage is 101,000 miles. Tubeless Bike Tires. See chart below. 4 GPM for medium du Certified 1800 PSI Electric Pressure Washer | Canadian Tire. The Yokohama and the Goodyear GSA both have a load capacity of 3525 @ 50 psi per tire. You will feel a little difference because of the tires. The system determines a low tire pretty quickly as well; the low tire had 36 psi and the other tires were at 40 psi. So, measure your tire pressure when the tire is cold and adjust it around 39. For example: a big off road tire may require less pressure than the factory sized tire due to sidewall make ups and load range ratings. Every effort will be made to reschedule your examination at a convenient time as soon as possible. PSIG—this is the term used for PSI in relation to atmospheric pressure. Full Member. the rated loads of the tire. Go Kart Tubes, Locknuts, Low Pressure Tire Gauges and Valve Stems. com What Does "PSI" Mean When You're Measuring Tire Pressure? "PSI" is an acronym that stands for "pounds per square inch," and it is the standard unit of measurement for pressure. A car designed to run at 35 PSI, may not look like low at 24 PSI, but it is. PressureStat is an asset management solution for operations of any size. Yes manufacture numbers are great but they aren’t perfect for all parts of the World. That is why using and maintaining tires correctly, as well as being aware of their characteristics, is fundamental in order to guarantee safety in any situation, to increase your tires' lifespan and to save money. What is Psi (Pounds per square inch)? Psi (pounds per square inch) is 1 pound of force per square inch. Pressure on the door is at the full load the vehicle is rated for when using the tire size that is on the sticker (meaning the size it was born with). A qualified tire technician should demount the tire to conduct a thorough tire and wheel inspection before returning them to service. General Grabber A/T X. Will likely be close to 35 psi. Difference Between Cold/Hot Tire Pressure I know this is probably not the most intelligent question but does anyone know the general difference between cold tire pressure and hot tire pressure. Both force and area have an inverse relationship. tire reset on in ford freestar my freestar tire rest light came on. Tire pressure is the atmospheric pressure inside the tire, usually rated in pounds per square inch (psi) or kilopascals (kPa). 757 Pa You may o. My friend who works at Discount Tire said the recommend tire pressure is for under a load but it sounded like BS to me. Unique, all-season radial tire for over-the-road. For tire life and fuel efficiency, go to the upper PSI, for track driving, and some more grip, go to the lower PSI. (Forget about things being “as free as air” — at. On new pavement, your tires might feel great at 100 psi, but on a rough road, they might roll faster at 90 psi. Speed Rating (T). Do Not Release Hot Tire Pressure if any of these variables could be the cause of measured tire pressure exceeding the maximum psi branded on the tire's sidewall by the 2, 4 or 6 psi indicated above for the…. It is not a guide for what PSI your car should have (but, it shouldn't be exceeded) Recommended is 35 (door placecard) which is awfully close to the max 40 and very easy to exceed. Pressure in tires is usually measured in units of psi - pounds per square inch. I think the stock tires are 44 psi max and the recommended pressure is 30 psi. It features a smaller 2” tread depth and fits a 22” diameter wheel. Bias-Ply Replacement Trailer Tire — 480/400-8, Load Range B, Model# 408B-I | Northern Tool + Equipment. Best Digital Tire Pressure Gauges in 2019 Most of them are quite inexpensive and all of them use a digital display to show the exact pressure. In the door jam of my 2011 V6 touring the sticker states 32 psi at cold for a 225/55/17 tire. 7-inch rubber air hose and has a nine ft cord that connects to the cigarette plug. This seems too high. Note: 35 psi is the assigned "maximum load" pressure for standard load tires and 41 psi is the assigned "maximum load" pressure for extra load tires. The Federal Couragia M/T Tire is Federal's answer to an offroad tire. It can be understood as the amount of force that is exerted on an area of one square inch. Advanced rubber compound gives longer tread wear and low rolling resistance while the flatter tread profile increases towing stability. Super Swamper M-16 Tires at Interco. The sticker on the door jam, is only for the tires the car came with. Ambient temperature affects the cold tire pressure. Select Metric or Flotation Tire Size Type Select section width of tire Metric (205/55R16) Flotation (35X12. Under-inflation lessens the tire's load capacity, can make for squirrelly handling and, most importantly, makes the tire run hotter. Do Not Release Hot Tire Pressure if any of these variables could be the cause of measured tire pressure exceeding the maximum psi branded on the tire's sidewall by the 2, 4 or 6 psi indicated above for the…. What do the size markings on bicycle tires mean?. For road tires, the tread pattern is usually cosmetic as even on wet roads, a slick tire is preferable for grip and adhesion. org dictionary, synonyms and antonyms. ^^^ ummmm sorry dude your wrong. 50-14 6PR R4 GA 83 kPa/340 kPa (12 psi/49 psi). tire charts site map main menu all in + out print-revs static max tire psi max side tread sales vehicle overall per load-lb load-lb inflation tire size wall type code family name supplier diameter mile at at pressure p245/70r16 bsw o/o ts8 an1,5 wrangler sr-a good year 29. An independent review by Dave McElwaine, who supplied the two photos above is available here. To determine whether you need to (a) buy new tires, (b) have your wheels balanced, (c) have your wheels aligned, or (d) change your driving habits, simply read your tire treads for clues. I run my Continental Gatorskins 700 x 25c tyres at 80 psi and my Vittoria Corsa Cx 700 x 23c at 100 psi. I'm tired of patching my flimsy 15" range C BFG's every time I run over a piece of broken hard candy or a particularly rugged bug.  However, somehow the sticker on my M3 has 45 PSI even though it's delivered only a few days ago. Also, using a lower pressure will mean there's a greater safety margin from the maximum psi when the tires start to heat. per the chart I posted earlier:. Many pump their tires way too hard thinking it reduces rolling resistance but actually can cause increased rolling resistance as the super-hard tire bounces off the rough road surface. Because tires are global products, their maximum inflation pressure is branded on the tire in kilopascals (kPa) and pounds per square inch (psi). It is one of the best place for finding expanded names. The only way to set a proper tire PSI is a chalk line. Either way, too often consumers see the maximum inflation pressure on the sidewall and believe that is the correct pressure for their car. However, in heavier cars, such as minivans, the pressure can be higher, upwards to 303 kPa (44 psi). My questions are: 1) Do the letters mean the location of the tire when they were removed OR do the letters mean the location on the car where they should go when put back on?. ” As for one of the remedies suggested by the AP – having tire manufacturers make tires with higher speed ratings, Park basically says fat chance. Mileage (Chevy Duramax, 3500HD, 4WD, Crew cab,. Making sure that your car's tires are properly inflated leads to better gas mileage and longer lasting tires, according to the U. 35 CFM air flow. You can monitor this by measuring the air pressure within each tire, expressed in pounds-per-square-inch (psi). The tire is designed and constructed to handle a specific maximum load, and overloading will result in a buildup of excessive heat in the tire, which could lead to tire failure. It features a smaller 2” tread depth and fits a 22” diameter wheel. Tires and wheels that have a rim diameter expressed in half inches (14. That is why using and maintaining tires correctly, as well as being aware of their characteristics, is fundamental in order to guarantee safety in any situation, to increase your tires' lifespan and to save money. One psi is approximately 6,895 pascals (N/m 2). Standard and extra load tires meet the maximum load at 36 and 42 PSI, respectively, and maintain that load up to the tire’s maximum operating inflation pressure. How does the weather play a role?. A load range ‘C’ tire at 25 PSI might be able to support a load of 990 pounds, while at 40 PSI, that capacity could be 1300 pounds. Tire Size Ply Rating Tire Weight Diameter Tire Width Tread Depth Capacity Max PSI Wheel Size 12x16. Most motorists believe radials are better (and they are for your auto). com Convert tyre air pressure from pounds force per square inch (psi) to bar & kilopascal (kPa) units, and vice versa for car, cycle, lorry, truck or an aircraft pneumatic tyre. The last four digits in this example, 1309, mean this tire was manufactured in the 13th week of 2009. BikeTiresDirect. DANGER: Never mount a 16" diameter tire on a 16. “The problem you will eventually run up against is the max cold inflation pressure rating for the tire and the wheel – usually 120 psi for a load range tire and slightly higher for a load range H. You see, this will never have an answer because everyone has covered their butt so you can't sue them. See why Kenda is the right choice. For the H rated tire 90 psi supports 11,380# (which exceeds my load) and 100 psi supports 12,380# (way more than needed).