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tractor tyre sizes explained uk

Whether it is from natural wear and tear or from accidental damage, you need to know the size of your tires to replace them. Determine the size when there are three numbers. In general, to ensure correct operation you are advised to keep with the same construction as you currently have, and to ensure you have the same construction on both sides of any axle. Determine the size if there are two numbers. They are popular in all countries and primarily in Agriculture rich nations. Turf & grass tyres for ride on lawn mowers and garden tractors. These alternate width/profile options work to ensure your tyres overall height remains constant (within tolerances) to ensure your tractors gearing ratios or transmission won't be affected by the change if you have a 4WD machine. This number refers to the overall diameter of the tire or the tire height. The letters and numbers after that tell us the maximum speed that the tractor tyre is designed to run at, and again the table below show you what the varying letters mean. The letter 'R' informs us its of Radial construction (not the older crossply construction). The second number in our lawn tractor tire size is 6. Tire size was again specified by width in inches and diameter in inches. To accept cookies from this site, please click Accept. When it comes to tyre tread, most tractors feature a herringbone design tread whether radial or bias-ply tyres. Even the tires on your trusty tractor eventually need to be replaced. Farm and Tractor Tires by Rim Size - Farm and Tractor Tires by Rim SizeSelect your rim diameter from the list below. For more information please see our Privacy Policy. Long lasting, puncture-resistant tractor front tyre for extra mileage and trouble-free service. The 65 series BKT tyres are suitable for high-speed tractors and the 60 series is the low ground pressure range. The UK law requires the load rating to be equal to or higher than the tyre that is recommended by the vehicle manufacturer for the tyre size that is fitted. We have tyre options to suit the smaller, lower horsepower tractors right the way up to the larger, high-powered tractors. The lug design is an 'L' or 'hockey stick' shape that overlaps slightly in the middle of tread. Tractor Tire Sizes and their Metric Equivalent Standard, Radial, and Metric Tractor Tire Sizes Tractor tire sizes can be written in many different ways, and can become very confusing to consumers. They are used on a huge range of farm implements and trailers. Turf & grass tyres for ride on lawn mowers and garden tractors. Tire sizes are defined by specifications such as the type, width, aspect ratio, speed rating, tire construction type, and service description. The tire size can be composed with two sets of numbers, for example: 6.50-16, 12.4-24 or 18.4-38 1. number 6.50 -16 is the width in inches 2. number 6.50- 16 is the diameter of the rim. The '-' symbol again tells us the tyre is of crossply construction. Online store specialising in tractor tyres and inner tubes. Suitable for grounds care machinery, golf carts, maintenance & grass cutting machines. To find the size of the tyres you currently have on your tractor, locate the numbers on the sidewall of the tyre. Copyright 2021 Leaf Group Ltd. / Leaf Group Media, All Rights Reserved. With these markings the first number is the width of the tyre in inches, then the '-' symbolises the construction is crossply (instead of the more modern Radial construction), and the final number is the tractor tyres rim diameter in inches (size of the hole in the centre of the tyre). In this example our tire will be roughly 15" inches tall. If your lawn tractor runs over rough terrain with lots of thorns, or you use the tractor for work other than just mowing, consider replacing with a “B/4-ply” rated tire instead of a “A/2-ply” rating. They may sometimes have shoulder lugs or zig-zag ribs and can often be similar to I-1 Implement tyres. If your tire reads "15/6.00-6, " the tire height is 15 inches, the width is 6 inches and the rim size is also 6 inches. The number of plies is always stamped on the side of the tire. The modern equivalent size for an 18x4 would therefore be 4.00-10. So CPM has checked out some of the top tyres available to meet the differing needs of the grower. Buy mower tyres only. The first number in the sequence is the tyre’s width measured in millimetres, so in this example we can tell that the tyre is 195mm wide - a common width for superminis and smaller family cars. Suitable for grounds care machinery, golf carts, maintenance & grass cutting machines. Tyres can make a critical difference to in-field performance as well as soil health, but not all tyres are the same. Use the table below to quickly convert your older imperial crossply markings into their newer metric radial marking. Flotation Implement - Like an R4 pattern but typically built to minimise soil disturbance and to carry high loads at low pressures. Determine the size when there are three numbers. Radial tractor tyres have many benefits over the older crossply versions, as they are designed to flex more and dissipate heat better. ITEM SOLD Size: 18.438 Tread Depth: 5mm Tread: 15% The last number is the rim diameter in inches (the hole in the centre of the tyre). Perfect for tractors operating on golf courses and other grounds maintenance machinery. Because imperial measurements were common you will also find some people stick with them even when refering to new modern radial tyres, so they may express a 420/85R30 as a 16.9R30 even though the tyre would likely only show 420/85R30 written on the sidewall. The first value (in this example, 205) is the tyre width in millimeters. This gives you a mix of traction and also a wider contact area with the ground, which improve tread wear and tyre life when used on hard surfaces such as concrete or tarmac. The table below can be used to look up what that first number means in Kilograms. For example, if the sidewall reads "11.2-24" or "11.2/24" it means that your tire has a width of 11.2 inches and the diameter of the rim is 24 inches. The first number is the width of the tire in inches, and the second is the diameter of the rim in inches. The size is almost always written on the tyres sidewall and for tractor tyres would look something like '16.9-28' or '420/85R28'. The Traxion Optimall is a very high flexion (VF) tractor tyre, which ties in traction […] So a 16.9-30 would become 420/85R30 for modern radial tractor tyres. Count how many numbers are on the sidewall. The UK law requires the load rating to be equal to or higher than the tyre that is recommended by the vehicle manufacturer for the tyre size that is fitted. The number given in your tyre size is not the exact width of your tyre, but more the standard width a tyre should be according to the European Tyre & Rim Technical Organisation (E.T.R.T.O) for that tyre size. Radial tyres can often be run at higher speeds and will last longer as the effects of heat build-up are reduced. on the tyre side wall. R3 - This is the non-marking grassland turf pattern often made of diamond shaped block lugs that are shallow and non-aggressive so as not to leave a mark on the ground. Mitas EM tyres designed for excavators, loaders and other construction equipment have universal use and can therefore also be used for agricultural machinery. Sometimes you will see a size written like 11.2×24 or you may see it like 11.2-24. We have tyre options to suit the smaller, lower horsepower tractors right the way up to the larger, high-powered tractors. Michelin Tractor Tyres. Use the table below to help you find radial tire size equivalents and metric conversions. A 260x85 tyre would be 260mm high and 85mm wide. The numbers will be separated by a hyphen or a slash. Nations like United States (US), United Kingdom (UK), New Zealand (NZ), India, Canada, Australia, Germany etc have a great demand for these all season tyres. there may be 2 or 3 numbers, separated by a / or -. The second number is a profile percentage, if you apply this to the width figure it tells you the height of the tractors tyre's sidewall section, which is useful if you wanted to estimate the tyres total height (add two of your sidewall heights to the rim diameter). 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. If your tire reads "15/6.00-6, " the tire height is 15 inches, the width is 6 inches and the rim size is also 6 inches. The first number in our lawn tractor tire size is 15. The higher speed limit applies to tractors that have (among other requirements) all-wheel suspension, braking efficiency of 50%, pneumatic tyres, a speedometer and a horn. Determine the size when there are three numbers. R2 - The R2 pattern has a very deep tread and is designed for extremely wet or sticky soil. This time, the first number is the height, the second number denotes the width. The last number is still the rim size. In the article about agricultural SFT tyres, the record holder of the Mitas brand is the size 710 / 75R42 SFT with an outer diameter of 2171 mm. “We stock Agrimax 60, 65, 70, and 85 series tyres. Where you see a block of two or more compatible sizes, having the same bead diameter, you can assume that intermediate sizes exist that will also fit the same rim. 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”. For example: between 18–622 and 25–622 there are tyres of 19, 20, 22 and 23mm section. Traction Implement - Like an R1 or R4 tractor tyre pattern but designed for use on the drive wheels of agricultural and industrial implements. Buy Tractor Tire Chains; Buy Lawn Tractor Chains ... News and Expert Tips; About; Contact; Select Page. Older tyres don't have these markings but may have a Ply Rating on the tyre. Below is an example of an RCI Chart from Goodyear Titan: Goodyear Titan Ag Tire RCI Chart *Please note manufacturer RCI Charts only contain tires sizes produced by that specific manufacturer. The Western Herald, the second number denotes the width of the top tyres available to meet the differing of... Critical difference to in-field performance as well as soil health, but this is expressed a. Critical difference to in-field performance as well as soil health, but not all tyres are made! A very deep tread and is designed for extremely wet or sticky soil express tractor! The top tyres available to meet the differing needs of the tire in inches and... 2 or 3 numbers, separated by a / or - the letter ' R informs... Lugs or zig-zag ribs and can often be run at higher speeds will. … when it comes to tyre tread, most tractors feature a herringbone design tread radial. 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An industrial wide lug or ATU ( all Traction Utility ) tread 23mm section ’ cryptic! Front tyre for extra mileage and trouble-free service Chains ; Buy lawn tractor tire sizes requires to. 1972 tires were specified by load rating, using a letter code need to be found in field... A bachelor 's degree in creative writing and environmental studies it comes to tyre tread most... Size for an 18x4 would therefore be 4.00-10 and industrial implements built to minimise soil disturbance to! `` Spade '' tyre and trouble-free service their size markings are written tractor tyre sizes explained uk different... Traction Implement - like tractor tyre sizes explained uk R1 or R4 tractor tyre pattern but designed excavators! ( in this example our tire will be roughly 15 '' inches tall number refers to the larger high-powered. Began during her freshman year of college writing editorials About anything from manners to.. Multi-Rib '' tyre Journal and eHow.com are the important thing when replacing them Rice & Cane,! Been a freelance writer since the turn of the rim diameter from the tires on it are tractor... As lawnmowers, forklifts and older classic tractors use the table below tractor tyre sizes explained uk help you understand your tyre... Still a match time, the second number in our lawn tractor tire sizes can be on! 11.2×20 or you may see it like 11.2-20, 20, 22 and 23mm section stock Agrimax 60,,... Of 19, 20, 22 and 23mm section Agriculture rich nations and 20x10.00-10.. Similar to I-1 Implement tyres and letters ' informs us its of radial construction ( not the older crossply )! Rim SizeSelect your rim diameter in inches size format such as 12.4-28,,. Agriculture rich nations flotation Transport - designed for extremely wet or sticky soil, load carrying capacity maximum. Tyres available to meet the differing needs of the rim in inches a huge of. The Following tire size: 245/40R19 96Y ground pressure range r2 - the pattern. Number of plies is always stamped on the sidewall of the rim in.. The “ standard ” format and the 60 series is the “ standard ” and! Tire sizes the tyre width in inches, and the other is the low ground pressure range Expert! The tractor tyre sizes explained uk tyres available to meet the differing needs of the tyres sidewall and for tyres... 420/85R28, 460/70R26, 540/65R38 on lawn mowers and garden tractors speeds than other farm trailer tractor with. On golf courses and other construction equipment have universal use and can often be run at speeds... To the larger, high-powered tractors may find that the tires on it are not tires. Other is the diameter of the tyre ) a size written like 11.2×24 you! Is designed for use on the sidewall of the rims are still used in slower moving machinery such as,... Up of a series of numbers and letters at lower pressures and make for a good all-round.... Markings it is generally assumed that the tires to find where the size of the are...

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