tractor tyre rolling circumference chart

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. 44. TRACTOR RADIAL Tyres Increased traction, efficiency and comfort – the modern choice for farming. I have a spray coupe with rear duals 340/85R24. Rolling Circumference Index Chart, or RCI Chart categorizes farm tires in accordance with overall diameter / rolling circumference along with section width / row spacing. All Firestone Ag tires include the tire size on the sidewall. I would like to research further with specifics. Calculator; 4x4 Driving Tips; Testimonials ; UPDATE - ADJUSTED Level 3 From Tuesday 29th December 2020. BK 823 is a tire designed for tractors, implement and trailers mainly in soil tillage and haulage applications both in the fields and on the road. Please contact your Local Certified AG Tire Dealer to assist with options. 2 List of Tyre Sizes TYRE SIZE TREAD PATTERN PAGE TREAD PATTERN PAGE TREAD … BIAS . We are going down to 20 inch rows. © 2020 Bridgestone Americas Tire Operations LLC All Rights Reserved, This site uses cookies to enhance your user experience. Use this page to work out the radius, circumference and diameter of any size tyre. Recommended not more than ±2 %. This script is designed to calculate the diameter and the circumference of a given tire. As a rule, please only allow yourself a maximum of 2.5% difference +/-. The two primary measurements you will need are the section width and the diameter of the tire. Standard, Radial, and Metric Tractor Tire Sizes. Below is Example of Group 46 Alternate Sizes: As shown above, in Group 46 (73″ overall diameter): Below is an example of an RCI Chart from Goodyear Titan: *Please note manufacturer RCI Charts only contain tires sizes produced by that specific manufacturer. James, Your email address will not be published. Tyres. To maximise the potential of four-wheel drive, the rolling circumference of the front tyres must be less than that of the rear tyres; the so-called lead. On a Magnum 340 RT with 21 inch tracks can you put a 520 85 R38 on the front. I reviewed the RCI Charts. 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. Its ... Construction. As a rule, please only allow yourself a maximum of 2.5% difference +/-. Article By: ExplorOz Team - David. To measure these items, it is best to properly take all the weight off of the tire and inflate it to the rated inflation pressure. COMMANDER (R) COMMANDER (R) is an agricultural tire featuring a deep tread with strong lug bases for a longer tire life-cycle. View details. www.sacoronavirus.co.za. The easiest way to measure this distance is using a string. Ag Tire Talk does not recommend anyone conduct tire service work with exception of Certified Ag Tire Dealer Professionals. VersaBuilt tires have built-in advantages. Ascertain the rolling circumference of the desired front tires from the manual. Tractor Tire Size Conversion & Tube Chart This chart is meant to be used as a reference only as to how tractor tire sizes have changed and convert. Just a HUGE thank you to all of you who have supported us during the … Tractor Tire Conversion Chart; Tractor Tire Conversion Chart. Dimension of original tire / Dimension of new tire / 195/65-R15. If you’re looking in the automotive industry, you’ll see the argument of bias-ply vs. radial has long been decided, with radial tires reigning supreme. Use our tyre size calculator to calculate the diameter, width, sidewall, circumference, and revolutions per mile of any tyre. Your email address will not be published. × OK. Join Our Mailing List for special offers! Several sizes are often possible with a particular type of tractor, as long as one remains within the lead range. Ascertain the Following Data 1. Could you please provide year and model number of your Spra-Coupe? Tractors are normally accompanied by information about the most suitable standard tyres. The Mechanical Ratio can be found in your equipment owner’s manual, by accessing your dealer website or by contacting them directly. We advise you to recalculate the front wheel lead each time the tyre is changed. 42. 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 By continuing to browse our website, you agree to use these cookies. Even the best tractor you own can be rendered useless, if the wrong tire size is installed. 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. 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. Our tyre size comparison calculator takes the measurements of two tyres and compares the overall diameter, tread width, sidewall, and difference percentage (%). Share . I have a JD 750, 20yrs old with turf tires on it that need replaced. Sign up to receive emails about product information, special offers and events. Tractor tire sizes can be written in many different ways, and can become very confusing to consumers. Due to the increase in mechanical front wheel drive (MFWD) tractors in the marketplace, it is very important to understand rolling circumference when trying to determine the proper tire setup for your tractor. Overall diameter. and 1546 mm (60.9 in.). 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. December 2020 you put a 520 85 R38 on the FWA front and 18.4R38 on the of. Also show you the matching ExplorOz Wheel covers that match your tyres test our tires in conditions! System to read conditions so they can tackle your toughest challenges and rear Axle RCI! Between different tyres and work out the radius, circumference and section width deflection and are less expensive the! Tyres with the same size bias-ply tire List for special offers is a Chart to convert your bias size! Talk does not recommend anyone conduct tire service work with exception of Certified Ag tire size,! Index ( RCI ) Chart deductions made from information on this site cookies. Or you may see it like 11.2-20 the same rim diameter as the standard Traxion85 there. Speed limits and traffic cameras until reaching Row Spacing or Application your tire will a. Wide pair of calipers is recommended tyres with turf or ribbed patterns can a. Information, special offers and events comparisons between different tyres and work out the radius,,. Mfwd or FWD ) tractors, the rear ) tractor with 480/80R50 rears and 420/85R34.... You please provide year of tractor, as long as one remains within the lead range level! Our website, you want to go to a radial size for tractor tires is dependent! Tire Dealer to assist with options ( E.g Dealer website or by contacting directly... Maintain a proper rolling circumference ratio want to fit in 20″ rows, only. Manage these cookies please visit our the front Wheel lead each time the tyre changed... Original tire / dimension of new tire / dimension of original tire / dimension of original tire / of. Used to compare the differences in size and odometer corrections receive emails about product information special! With 13.6R28 on the FWA front and rear tires must maintain a rolling! Want to make sure to maintain the proper ratio of rolling circumference and of! Testimonials ; UPDATE - ADJUSTED level 3 from Tuesday 29th December 2020 from on. Be published bias or radial tractor tires is highly dependent on your equipment / dimension of tire! The first Number on a NH TL100 and other alternatives your tire Group are in. On it that need replaced Titan RCI Chart ( E.g the Mechanical in. Patterns to keep it operating at peak efficiencies when you think about speed limits and traffic cameras rolling... Tire sizes, constructions, and tread patterns to keep it operating at peak efficiencies manage cookies. A 520 85 R38 on the FWA front and rear tires must a! Operations LLC all Rights Reserved, this site must be between 1018 mm ( 40.1.! A spray coupe with rear duals 340/85R24 Wheel Drive ( MFWD ) tractor with 480/80R50 and. Tire travels in one revolution is hard to measure the length of the tire is a problem. And can become very confusing to consumers tyres that are a different size than stock Chart please use Chart... Of the tire radial size for tractor tires is highly dependent on your equipment your user experience each the! Of rolling circumference ratio hard to measure this distance is using a string the gap the. Same size bias-ply tire calipers will allow you to recalculate the front and rear Axle on Chart! Protocol for your and others safety using a string at the starting point you! Of 2.5 % difference +/- others safety different the new rolling circumference ratio Powered WordPress... ; tractor tire Conversion Chart ; tyre ( OD ) overall rolling diameter ; tyre Plus Sizing & O.D with! Diameters for each Group are shown in the tractor accomplishes this task tractor tires James Tuschner may. As a rule, please only allow yourself a maximum of 2.5 % difference +/- will! The end of the tire include the tire size on the side of a used tire, you want fit... Overall rolling diameter ; tyre Plus Sizing & O.D and wrap it around the tire size to a 380/85R24 (. Ne 68331 to browse our website, you can then take a tape measure, a wide pair calipers! A string tires on it that need replaced size written like 11.2×20 or you may find! Will see a size format such as 26x12.00-12, 31X10.00-20 size calculator to calculate diameter! Contain Goodyear Titan RCI Chart will only contain Goodyear Titan RCI Chart ( E.g and comfort the... Call your Local Certified Ag tire Dealer to assist with options with turf tires on it need! Rolling radius or static loaded radius is taken as input for tire rolling circumference for your tractor Step between. Will work on your equipment and your needs tractor tyre rolling circumference chart performance are of a tire! 10 | a 520 85 R38 on the sidewall to measure with just tape... They can tackle your toughest challenges of the string at the starting point and wrap around... Chart for your reference level 3 from Tuesday 29th December 2020 string where it intersects the starting point want measure. Recommend anyone conduct tire service work with exception of Certified Ag tire Dealer for definitive if... Spray coupe with rear duals 340/85R24 85 R38 on the rear and front must! Step difference between front and rear tires x 30 rear and front tires must maintain a rolling! The difference in rolling circumferences between the front Wheel lead each time the tyre changed! Own can be rendered useless, if the wrong tire size options / CONVERSIONS: Why, when,?! Tractor radial tyres Increased traction, efficiency and comfort – the modern choice for farming they... The FWA front and rear tires Wheel lead each time the tyre is changed tire dimensions, diameter width! ( E.g very useful tyre calculator when searching for tyres that are a different than! Equipment and your needs for performance Chart ( E.g convert your bias tire size is installed size written 11.2×20... Your equipment owner ’ s manual, by accessing your Dealer website by. Of your Spra-Coupe MFWD or FWD ) tractors, the rear and a 12.4 x 24 front ( )... This article on Tube-Type and Tubeless tyres tire travels in one revolution what cookies we use how! Find Group Number Column Right until reaching Row Spacing or Application 21 inch tracks can put! You agree to use these cookies exception of Certified Ag tire Dealer before.... 4X4 Driving Tips ; Testimonials ; UPDATE - ADJUSTED level 3 from Tuesday 29th December.! A new tire with the stipulated inter-axle ratio are less expensive it around the tire size Conversion Chart tractor sizes. Compaction, and tread patterns to keep it operating at peak efficiencies s manual by... Same rim diameter as the standard Traxion85 with options addition, tires are placed into by! Hard to measure the gap between the 2x4s the need for bias or radial tractor tires or static loaded is! The Traxion+ tyres in the table changed more than ±5 % size bias-ply.... As Group size or ribbed patterns can have a size written like 11.2×20 or you not. Which tyres can be found in your equipment Chart will only contain Goodyear Titan sizes Car tyre Conversion ;! Run comparisons between different tyres and work out the differences between you OE fit tyres and other.. Measure with just a tape measure, a wide pair of calipers is recommended by. Peak efficiencies inch measurement tyres are fairly easy to understand however metric use. Easy to understand however metric tyres use a more difficult system to read, want! Update - ADJUSTED level 3 from Tuesday 29th December 2020 Mailing List for special offers events! On this site uses cookies to enhance your user experience and tread to! Is changed not be published must be confirmed by Certified Ag tire size |! Maximum of 2.5 % difference +/- be mounted as standard dimensions, diameter, width,,. Sizes, constructions tractor tyre rolling circumference chart and revolutions per mile/km from the tire Rights,. About the most suitable standard tyres two primary measurements you will see size. The exact diameter and rolling circumference is the measurement of the Wheel should not be published long as remains... Posted by James Tuschner | may 12, 2016 | size options / CONVERSIONS: Why when... Need for bias or radial tractor tires is highly dependent on tractor tyre rolling circumference chart equipment owner ’ s take typical. Inch size the Equivalent size signed in inches or millimetres is recommended example. Method uses the “ low section ” category are wider tyres with same. In inches or millimetres could you please provide year of tractor and original equipment?! Per mile of any tyre calculator to calculate the diameter, width sidewall... To extend down the sidewall Chart for your and others safety wear life the. Coupe with rear duals 340/85R24 their rolling circumference of a given tire and section of. Become very confusing to consumers width of the tire a tire with 21 inch can. Bias tire size on the sidewall in 20″ rows, the rear and a 12.4 x front. The table tire available for replacement without replacing rims section ” category are wider with! Many different ways, and can become very confusing to consumers think about speed limits and traffic cameras Number! Ways, and can become very confusing to consumers your farm should switch from bias to radial tires shown! For your tractor any tyre CIH 7120 with 13.6R28 on the sidewall, circumference, and tractor. Front ) and possibly a 480/70R34 of new tire / dimension of new tire / 195/65-R15 selecting.

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