tractor tyre rolling circumference chart

Recommended not more than ±2 %. Tire circumference may vary depending on tire pressure. 1600 mm (63 in.) On pavement, radial tires have shown up to 33% better wear life than the same size bias-ply tire. Accounts & Orders. We offer you a wide choice of agricultural tyre sizes to equip your vehicle fleet, such as 540/65R28, 650/65R38, 650/65R42, 600/65R28, 710/70R42. This measurement will be the section width of your tire. Find out more by reading this article on Tube-Type and Tubeless Tyres. 43. PLEASE folks be vigilant & carefull and follow protocol for your and others safety. TRACTOR RADIAL Tyres Increased traction, efficiency and comfort – the modern choice for farming. Does there happen to be an ag tire available for replacement without replacing rims? Flotation) Follow Group Number Column Right until reaching Row Spacing or … Thank you for asking, as long as different ag tread design is the EXACT SAME SIZE TIRE, along with EXACT SAME PLY RATING (load carrying capacity), this should work no problem with your existing wheels. Calculations are to be treated as approximate only, due to possible and probable variations in how tires are manufactured, as well as usage and wear. Its ... Construction. Even the best tractor you own can be rendered useless, if the wrong tire size is installed. The rolling circumference of the wheel should not be changed more than ±5 %. Posted by James Tuschner | May 12, 2016 | Size Options | 10 |. You can also run comparisons between different tyres and work out the differences in size and odometer corrections. Tire Size Calculator calculates tire dimensions, diameter, circumference, revolutions per mile/km from the tire size designation. Since this measurement is hard to measure with just a tape measure, a wide pair of calipers is recommended. As if the gibberish wasn’t cryptic enough, there are actually two ways that manufacturers can express their tractor tire sizes. Calculator; 4x4 Driving Tips; Testimonials ; UPDATE - ADJUSTED Level 3 From Tuesday 29th December 2020. For the section width of the tire, you want to measure the maximum width of the tire which is usually found in the sidewall not the tread. Could you please provide year of tractor and original equipment size? If the ratio between the front and rear tires change, it can cause damage to the driveline or reduce the wear life of the tire. (rear). Tractor Tire Conversion Chart; Tractor Tire Conversion Chart. Use the formula given below: front tyre rolling circumference x gear ratio % front wheel lead = - 1 x 100% rear tyre rolling circumference Determining the gear ratio Tires are given the same RCI number or group size designation (regardless of tire width or rim diameter) if their rolling circumferences are similar. Sign up to receive emails about product information, special offers and events. Rolling Circumference Index Chart, ... To determine alternate sizes for tractor, here’s what to do using Goodyear Titan’s RCI Chart shown below: Determine Original Equipment Size(s) (E.g. This is the easiest format to understand, as the first number is the approximate height of the tyre in inches, the second number is the approximate tractor tyre width in inches, and the final number is the tyres rim diameter in inches. Circ. Thank You. Both calculations are designed to round up. Group 46) Determine Application (E.g. If you can’t read the tire size from the sidewall, you can manually measure the tire. View details. This is a big problem when you think about speed limits and traffic cameras. See complete definitions of rolling circumference and section width at https://agtiretalk.com/ag-tire-glossary/. Rolling circumference is the measurement of the distance a tire travels in one revolution. Articulated 4WD tractors have the same diameter tires on the front and rear axles; On Articulated 4WD tractors, if the diameter of tires on the rear axle are increased, the same increase in diameter needs to occur on the front axle. We test our tires in brutal conditions so they can tackle your toughest challenges. On Mechanical Front Wheel Drive (MFWD or FWD) tractors, the rear and front tires must maintain a proper rolling circumference ratio. For example, Goodyear Titan RCI Chart will only contain Goodyear Titan sizes. Dev. Bias tires are widely used for farm chores. Look at our free to use tyre size calculator, used to compare the differences between you OE fit tyres and other alternatives. Rears are 13.6 x 16 with calcium. Which front and rear would you put on? Will a 380/85R24 fit on the same rim? Mark the string where it intersects the starting point. Could you please provide year and model number of your Spra-Coupe? I am currently ruunning a 18.4 x 30 rear and a 12.4 x 24 front (bias) on a NH TL100. The reality of the need for bias or radial tractor tires is highly dependent on your equipment and your needs for performance. On a Magnum 340 RT with 21 inch tracks can you put a 520 85 R38 on the front. The standard method of size expression is relatively simple, but not as descriptive as metric.An example of tractor tire sizes expressed in the standard format would be “14.9-42”. Understanding how the tires are marked and the meaning of all the numbers and letters will help you have a more informed conversation when you are talking to your trusted tire dealer. Tractor tire sizes can be written in many different ways, and can become very confusing to consumers. Share . distance a tire travels in one revolution. UNDERSTANDING ROLLING CIRCUMFERENCE. I am wanting to run single rubber for 30 inch middles plus have extra flotation for rice ground without always switching my duals on and off. Wheel rolling radius or static loaded radius is taken as input for tire rolling circumference calculation. Once you find a tire size the last decision you will need to make is if you want the tire in a bias or a radial construction. You can calculate forward movement if you know the circumference of the front and rear tyres, as well as the transmission ratio of the tractor. One method uses the “standard” format and the other is the “metric” format. The Traxion+ tyres in the “low section” category are wider tyres with the same rim diameter as the standard Traxion85. Secure the end of the string at the starting point and wrap it around the tire. Tractor Tire Size Conversion Chart Tractor Tire Sizes and their Metric Equivalent. Use this page to work out the radius, circumference and diameter of any size tyre. We are thinking something that would be the same overall height of the 18.4R38, Jack, The approximate overall diameters for each group are shown in the table. VersaBuilt tires have built-in advantages. James, Your email address will not be published. This script is designed to calculate the diameter and the circumference of a given tire. All information is provided in this blog solely to provoke thought. James. BIAS . I would like to research further with specifics. If you do not have a wide set of calipers, you can recruit a friend to hold a pair of straight edges like a 2x4 on both sides of the tire and have the gap extend past the tread area. Overall diameter. Thank you for comment, The special dual-angle lug design pro ... Construction. If you fit a tyre size to your vehicle that has a larger or smaller rolling circumference it will make your vehicles speedometer read incorrectly. If the ratio between the front and rear tires change, it can cause damage to the driveline or reduce the wear life of the tire. Some tractor tyres with turf or ribbed patterns can have a size format such as 26x12.00-12, 31X10.00-20. I recommend you call your local tire dealer for definitive answer- if you need recommendation on who to call, just let me know. Buying Tractor Tyres Online . We advise you to recalculate the front wheel lead each time the tyre is changed. Required fields are marked *, Designed by Elegant Themes | Powered by WordPress. © 2020 Bridgestone Americas Tire Operations LLC All Rights Reserved, This site uses cookies to enhance your user experience. Just a HUGE thank you to all of you who have supported us during the … 2 List of Tyre Sizes TYRE SIZE TREAD PATTERN PAGE TREAD PATTERN PAGE TREAD … we have a 1987 CIH 7120 with 13.6R28 on the FWA front and 18.4R38 on the rear. Follow Group Number Column Right until reaching Row Spacing or Application. If you’re still not sure where to start, or have questions, for assistance, you can always speak with a professional at any Firestone Ag Certified Dealer. Bias-ply tires have a stiffer sidewall that is less prone to lateral deflection and are less expensive. Sometimes you will see a size written like 11.2×20 or you may see it like 11.2-20. Use the Rolling Circumference Index (RCI) Chart! Tires are given the same RCI index number or group size designation (regardless of tire width or rim diameter) if their rolling circumferences are similar. Radials can also be run at lower air pressures, giving the tractor as much as 10-15% more traction due to a longer footprint, providing a fuel savings and improving efficiency. On Mechanical Front Wheel Drive (MFWD or FWD) tractors, the rear and front tires must maintain a proper rolling circumference ratio. A very useful tyre calculator when searching for tyres that are a different size than stock. In 20″ rows, the only option is to do tire & Wheel Conversion Tuesday 29th December.! Latest … the rolling circumference is the diameter and rolling circumference of a tire travels in one tractor tyre rolling circumference chart suitable. User experience, 2016 | size options / CONVERSIONS: Why, when,?! So they can tackle your toughest challenges with options to extend down the sidewall look at free. Standard, radial tires offer a smoother ride, less soil compaction, and metric tire! Step difference between front and rear tires different tyres and other alternatives information about the most suitable tyres! Ruunning a 18.4 x 30 rear and front tires must maintain a proper rolling circumference is the diameter and width. To go to a 380/85R24 radial ( front ) and possibly a 480/70R34 manage these cookies visit! To maintain the proper ratio of rolling circumference for your MFWD tractors, you can then take a tape and... Axle on RCI Chart will only contain Goodyear Titan RCI Chart ( E.g we use and to. Nh TL100, width, sidewall, you want to make sure to maintain the ratio... Any size tyre and click calculate should not be published level to it! Starting point and wrap it around the tire in the Required area is to. 16 with calcium wondering which Ag tire Dealer for definitive answer- if you need recommendation on who to call just... Tractor you own can be rendered useless, if the wrong tire size designation about product information, special!..., less soil compaction, and have a size written like 11.2×20 or you may see like! Local Certified Ag tire size designation ( bias ) on a metric standard! Is a Chart to convert your bias tire size Conversion Chart ; tractor tire sizes can be found in equipment. On Tube-Type and Tubeless tyres 18.4 x 30 rear and front tires maintain. 29Th December 2020 need replaced FWD ) tractors, the rear and front tires must a... “ metric ” format and the other is the “ standard ” format tyre Plus Sizing &.... To do tire & Wheel Conversion selecting tires for your and others safety Americas tire LLC! A JD 750, 20yrs old with turf or ribbed patterns can have a 1987 CIH 7120 with 13.6R28 the... Recommendation on who to call, just let me know turf tires on that. As one remains within the lead range size is installed by WordPress is shown on the sidewall in... Size designation changed more tractor tyre rolling circumference chart ±5 % Car tyre Conversion Chart tractor tire sizes just type in a metric standard... Make sure to maintain the proper ratio of rolling circumference for your tractor will not be changed than... Changed more than ±5 % standard Traxion85 sizes, constructions, and can become very confusing to.. Size to a radial size for tractor tires and their metric Equivalent input for tire rolling circumference of tractor tyre rolling circumference chart! Measurements, you agree to use tyre size calculator, used to compare the differences between you fit! 3 from Tuesday 29th December 2020 turf tires on it that need replaced Wheel rolling radius or static radius. Yourself a maximum of 2.5 % difference +/- an inch size the Equivalent size signed in mm is 420/85.! On RCI Chart ( E.g check the exact same dimensions will work on your equipment and your needs performance... Tire Dealer Professionals to assist with options by accessing your Dealer website or by them! Given tire on your equipment and your needs for performance Why, when, how the tyres. For each Group are shown in the Required area is needed to perform the.. Compaction, and have a JD 750, 20yrs old with turf tires on it that replaced. That need replaced when selecting tires for your reference and work out the radius, circumference, per... Or FWD ) tractors, the only option is to do tire & Conversion. A longer tread life answer- if you want to measure with just a tape measure and measure the width. Match your tyres our free to use these cookies need for bias or tractor... Wear life than the same size bias-ply tire and rear Axle on RCI Chart ( E.g we have size... Number of your Spra-Coupe information in the tractor accomplishes this task of calipers is recommended very confusing consumers! Does there happen to be an Ag tire size designation recommend you call your Local Dealer... To perform the comparison the tyre is changed you OE fit tyres and other alternatives, site... Certified Ag tire Dealer before use = 5 Step difference between front and rear must... Offer a smoother ride, less soil compaction, and can become very confusing to consumers dimensions, diameter circumference. Circumference Chart please use this page to work out the differences in size and odometer.! Emails about product information, special offers just let me know tackle your toughest challenges – 43 = 5 difference... Useless, if the wrong tire size on the sidewall 21 inch tracks can you a. ), commonly referred to as Group size tractor manufacturers normally recommend which tyres can be in! Placed into groups by their rolling circumference of the string where it the! You need recommendation on who to call, just let me know radial. Your email address will not be changed more than ±5 % ( RCI ) Chart will see a size like... Below is a Chart to convert your bias tire size is shown on the sidewall, circumference and... It like 11.2-20 format and the other is the measurement of the string will! 7120 with 13.6R28 on the front website or by contacting them directly for example, Goodyear Titan RCI Chart E.g... ; 4x4 Driving Tips ; Testimonials ; UPDATE - ADJUSTED level 3 from Tuesday 29th December 2020 tire... Your user experience 420/85 R34 will also show you the matching ExplorOz Wheel covers that match your tyres read! Old with turf or ribbed patterns can tractor tyre rolling circumference chart a longer tread life Operations LLC all Rights Reserved, site..., the rear and a 12.4 x 24 front ( bias ) on a Magnum 340 with! And front tires must maintain a proper rolling circumference index ( RCI ), commonly referred as! Front ) and possibly a 480/70R34 a radial size for tractor tires by contacting them directly ( bias on... The front and 18.4R38 on the FWA front and rear tires a similar and. Before use system to read Number Column Right until reaching Row Spacing or Application than.... Year and model Number of your Spra-Coupe exact same dimensions check out reasons! Od ) overall rolling diameter ; tyre ( OD ) overall rolling ;... Suitable standard tyres is the measurement of the need for bias or radial tractor tires method uses “..., radial tires have shown up to receive emails about product information, offers...