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285 60r18 in inches of Technology
Size: 285/60R18. Style: Blackwall. Serv. Desc: 116V. UTQG: 360 A A. Free Road Hazard Protection $186.76 value. Two-year coverage. Free Shipping. Set of 4: $ 1,928.36. $321.39 /mo suggested payments with 6-month promotional financing on your Tire Rack Credit Card. Learn How.375/60R18 circumference. The 375/60R18 tire has a circumference of 112.2 inches (2850.1 mm), This is the measurement of the distance the tire travels in one revolution. The tire circumference is important for your vehicle's overall performance, affecting its speedometer acceleration, accuracy and fuel efficiency. Circumference: 112.2 In.OD MM: 868. Speed & Load Index: 126Q. For more info on Speed & Load Index, see our guide. Tread Depth (MM) Actions: 14.7. Warranty: 70,000. Cooper Tires® S/T MAXX is a heavy duty 4x4 tyre designed to deliver reliable performance in mud, gravel, and sand. Shop now!How tall is a 325 60R18 tire? When converted to inches, the equivalent of a 325/60R18 tire size is 33.4x12.8R18. It means that: height overall (or diameter) is 33.4 inches. tread width is 12.8 inches. wheel diameter is 18 inches. Learn more →. 325/60R18 tire size chart.The 265/70R17 tire has an overall diameter of 31.6 inches, a section width of 10.4 inches, and can be mounted on 17 x 7.0-9.0 inches rim. The 265/70R17 tire has an overall diameter of 31.6 inches, a section width of 10.4 inches, and can be mounted on 17 x 7.0-9.0 inches rim. ... 285/60R18: 31.5″ (-0.3%)The 285/55R18 tire has an overall diameter of 30.3 inches, a section width of 11.2 inches, and can be mounted on 18 x 8.0-10.0 inches rim. The equivalent tire size in the high flotation system is 30.3x11.2R18. To help you understand, we'll break down each part of the 285/55R18 tire size to know what these numbers represent & how they may affect ...285/60 R18 in inches. 285/60 R18 tires' overall diameter is 31.5 inches, tire width is 11.2 inches, the tire can be mounted on 18 inches wheel and the circumference is 99". With …Understanding 275/60R18 in inches, a detailed tire size meaning and wheel fitment guide. Ensure a proper fit for your vehicle's wheels. Tire Size Calculator Tire Size Chart Tire Guides Tire Pressure Vehicle. 275/60R18 in Inches. ... 285/60R18: 31.5″ (1.6%) 18 x 8.0-10.0:245/60R18 Tire Size in Inches. 245/60R18 is a metric tire size representation, which defines that the tires have a width of 245 mm, 60 is the aspect ratio and a rim diameter of 18 inches. In the imperial system the tire size 245/60R18 equates to a 29.6×9.6R18 that is commonly used in the automotive industry. So Converting 245/60R18 in inches the tires have a length of 29.6 inches, a width of ...In the tire comparison table above, you can see a detailed calculation of the size difference between 265/65 R18 and 285/65 R18 tire. The calculation results are presented in the form of visual infographics, on which tire with size 265/65 R18 is on top, and tire with size 285/65 R18 below. Both in the table and in the graph, the tires are ...The width of a 325/60R18 tire is 325 mm, which is about 12.8 inches. What size rim fits a 325/60R18 tire? A 325/60R18 tire fits on a rim that is 18 inches in diameter. What does the 60 in a 325/60R18 tire mean? The 60 in a 325/60R18 tire refers to the aspect ratio, meaning the height of the tire's sidewall is 60% of its width.The width of a 265/60R18 tire is 265 mm, which is about 10.4 inches. What size rim fits a 265/60R18 tire? A 265/60R18 tire fits on a rim that is 18 inches in diameter. What does the 60 in a 265/60R18 tire mean? The 60 in a 265/60R18 tire refers to the aspect ratio, meaning the height of the tire's sidewall is 60% of its width.The 24-inch iMac comes with a built-in stand. You can remove this stand and add a VESA mount adapter to use the iMac with VESA-compliant mounts. VESA-compliant mounts are the ind...285 60 R18 Tires from 86.12 C$ Find best prices for 1,353 Tires in Canada and save money with Tire.ca (Date Jun. 1, 2024).Package Dimensions: 25 H x 25 L x 7 W (inches) Package Weight: 25.0 pounds ; Country of Origin : United States ; Fit type: Vehicle Specific ... Miletrip TP55 A/T All-Terrain Off-Road Radial Tire-285/60R18 285/60/18 285/60-18 120T Load Range XL 4-Ply RWL Raised White Letters.The 265/60R18 tire has an overall diameter of 30.5 inches, a section width of 10.4 inches, and can be mounted on 18 x 7.5-9.5 inches rim. The equivalent tire size in the high flotation system is 30.5x10.4R18. To make it clear, we'll break down each part of the 265/60R18 tire size to know what these numbers represent & how they may affect your ...Convert Section Width to Meters: First, convert 285mm to meters (285mm = 0.285m) because our formula uses meters. Calculate Sidewall Height: Multiply the section width by the aspect ratio and then divide by 100 to get the height of one sidewall. .285m×75÷100=0.21375m0.285 m ×75÷100=0.21375 m.285/60R18 : Rim Size 18 Inches : Section Width 285 Millimeters : Tire Aspect Ratio 60.0 : Load Index 116.0 : Speed Rating V : Load Capacity 2756 Pounds : Tread Depth 11 Inches : Tread Type Asymmetrical : Tire Diameter 31.5 inches : Item Weight 46 Pounds : Manufacturer Nexen : ModelGoodyear285/60R18 Goodyear EfficientGrip 2 SUV 116V. 285 / 60 R18 116V . from. R4,644.00. Available on Order.When it comes to measurements, precision and accuracy are of utmost importance. In our everyday lives, we often come across various symbols that represent different units of measur...285/60R18 : Section Width 285 Millimeters : Load Capacity 2 Pounds : Tread Depth 12 32nds : Tread Type Symmetrical : Maximum Pressure 44 Pound per Square Inch : Ply Rating SL : Tire Diameter 31.3 : Item Diameter 31.5 Inches : Item Weight 37.5 Pounds : Manufacturer Westlake : Model SU318 : Item Weight 37.5 ...The 285/60R18 Nitto Ridge Grappler has a diameter of 31.69", a width of 11.5", mounts on a 18" rim and has 656 revolutions per mile. It weighs 57.2 lbs, has a max load of 3305/3000 lbs, a maximum air pressure of 80 psi, a tread depth of 16.4/32" and should be used on a rim width of 8-10". See all Ridge Grappler tire sizes.When converted to inches, the equivalent of a LT285/60R20 tire size is 33.4x11.2R20. It means that: height overall (or diameter) is 33.4 inches. tread width is 11.2 inches. wheel diameter is 20 inches. Learn more →. LT285/60R20 tire size chart.Send us your suggestions and ideas for the tire size calculator! 275/70-R18 tires are 1.69 inches (43 mm) larger in diameter than 285/60-R18 tires and the speedometer difference is 5.1%.High-Flotation Tires. High-flotation tires will indicate the size on the sidewall in the following order: Overall Diameter (35 in this example) Section Width (12.5 or 12.50 in this example) Rim Diameter (17 in this example) Use Goodyear com's Tire Size Chart to find your tire size to help you find the right tire for your vehicle.The 285/75R18 tire has a width of 11.2 inches (285 mm). This is the measurement at its thickest point, the distance between the outer sidewall and the inner sidewall's widest point, also called as tread width or section width. ... 375/60R18: 35.7″ (+2.5%) 18″ x n/a: 315/70R18:Hi, I did some research and apparently with the 18''s, 275/55-18 and 285/50-18 (cooler look) will fit, none of your original choices however seem to work. Please, note that the original size for these rims are 255/55/18. ... I have a Cayenne S without air suspension and am looking to put 265/60R18 tires on for mild offroad use. Has anyone gone ...LT285/60R18: Section Width: 285 Millimeters: Load Capacity: 3306.9 Pounds: Tread Depth: 16 32nds: Tread Type: Non-Directional: Maximum Pressure: 80 Pound per Square Inch: Ply Rating: ... LT285/60R18 : Rim Size 18 Inches : Section Width 285 Millimeters : Tire Aspect Ratio 60 : Load Index 119 : Speed Rating S : Load Capacity ...285/50R18 Tire Size in Inches. 285/50R18 is a metric tire size representation, which defines that the tires have a width of 285 mm, 50 is the aspect ratio and a rim diameter of 18 inches. In the imperial system the tire size 285/50R18 equates to a 29.3×11.2R18 that is commonly used in the automotive industry. So Converting 285/50R18 in inches the tires have a length of 29.3 inches, a width of ...The width of a 305/60R18 tire is 305 mm, which is about 12 inches. What size rim fits a 305/60R18 tire? A 305/60R18 tire fits on a rim that is 18 inches in diameter. What does the 60 in a 305/60R18 tire mean? The 60 in a 305/60R18 tire refers to the aspect ratio, meaning the height of the tire's sidewall is 60% of its width.P 285/60 R18 is 31.46 in inches Section Width: 285 mm Rim Diameter: 18" Rim Width Range - What size rim fits a P 285/60 R18? 18x10.0 , 18x10.5, 18x11.0: Sidewall Height: 6.73" ... Each project is a unique experience with details on P 285/60 R18 installation issues or subsequent changes while driving. 2014 Jeep Grand Cherokee. KMC XD778 Monster ...The 205/60R18 tire has an overall diameter of 27.7 inches, a section width of 8.1 inches, and can be mounted on 18 x 5.0-7.5 inches rim.The width of a 225/60R18 tire is 225 mm, which is about 8.9 inches. What size rim fits a 225/60R18 tire? A 225/60R18 tire fits on a rim that is 18 inches in diameter. What does the 60 in a 225/60R18 tire mean? The 60 in a 225/60R18 tire refers to the aspect ratio, meaning the height of the tire's sidewall is 60% of its width.285/60R18 : Section Width 285 Millimeters : Load Capacity 3086 Pounds : Tread Depth 13 32nds : Tread Type Asymmetrical : Maximum Pressure 50 Pound per Square Inch : Ply Rating XL : Rim Width 18 Inches : Tire Diameter 285 : Item Weight 30 Pounds : Manufacturer Nitto : Model Ridge Grappler : Item Weight 30 ...The 285/35R18 tire has an overall diameter of 25.9 inches, a section width of 11.2 inches, and can be mounted on 18 x 9.5-11.0 inches rim. Send us your suggestions and ideas for the tire size c285/60R18. Which cars have the 285/60R18The difference in sizes and parameters between
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The 285/60R18 tire has an overall diameter of 31.46 inches, a section width of 11.22 inches, and can be mounted on 18-inch rims. The equivalent tire size in the high flotation system is 31.46×11.22R18.Understanding the tire diameter provides valuable insights into the overall size and proportions of the tire, aiding in proper fitment and performance considerations. Formula. Tire Diameter = Rim Height + 2*Sidewall Height. …The 265/75R16 tire has an overall diameter of 31.6 inches, a section width of 10.4 inches, and can be mounted on 16 x 7.0-9.0 inches rim. The 265/75R16 tire has an overall diameter of 31.6 inches, a section width of 10.4 inches, and can be mounted on 16 x 7.0-9.0 inches rim. ... 285/60R18: 31.5″ (-0.3%)285: It means the width of the tire is 285 millimeters: 70: The tire has an aspect ratio of 70. To put it simple, the sidewall height is 70% of the width, so it would be 7.9″. R: R stands for the Radial, a standard construction method for about 99% of tires. 18: The tire is designed to fit 18″ x 7.5-9.5″ rims that are 18 inches in diameter.Mar 3, 2011 · 285/60R18 : Section Width 285 Millimeters : Load Capacity 2756 Pounds : Tread Depth 11 32nds : Tread Type Directional : Maximum Pressure 1 Pound per Square Inch : Rim Width 285 Millimeters : Tire Diameter 31.5 : Item Weight 47 Pounds : Manufacturer Kumho : Model Ecsta STX : Item Weight 47 pounds : Item model ...Understanding 285/55R20 in inches, a detailed tire size meaning and wheel fitment guide. Ensure a proper fit for your vehicle's wheels. Tire Size Calculator Tire Size Chart Tire Guides Tire Pressure Vehicle. 285/55R20 in Inches. A 285/55R20 tire has a 32.3-inch diameter, a 11.2-inch width, and is designed for a 20-inch rim.The width of 285/60R18 116V tire is stated in millimeters and sidewall height in percentages. In this table you'll find out the 285/60R18 116V tire size in inches as well as few additional metrics: In inches: In millimeters: Section Width.Tires 285/60R18 ⚡ fast shipping, low prices, best service | 1010Tires.com is the largest and most trusted online and retail tire company. 1-877-877-1010 TOLL FREE My AccountBuy Dunlop Grandtrek AT3G 285/60R18 116S from Tyreright Your local tyre experts Find your closest Tyreright Service Centre or call ☎️ 1300-576-090. ... 18 inch. 265/60R18 114S 285/60R18 116S. 20 inch. 275/55R20 113T. Related Tyres LTX Trail 285/60R18 116T. Please select your store. Select your store.285/50R18 Tire Size in Inches. 285/50R18 is a metric tire size representation, which defines that the tires have a width of 285 mm, 50 is the aspect ratio and a rim diameter of 18 inches. In the imperial system the tire size 285/50R18 equates to a 29.3×11.2R18 that is commonly used in the automotive industry. So Converting 285/50R18 in inches the tires have a length of 29.3 inches, a width of ...Let’s take for example P265/60R18. This code gives you the following information about your vehicle’s tire: P = Passenger Tire (Light Truck Tires will begin with the prefix LT). ... 11 = Section width in inches. R = Radial Tire. 22.5 = Rim diameter and rim type. Rims with .5 in the size indicate tubeless or drop center rims, while rim sizes ...The width of a 285/35R18 tire is 285 mm, which is about 11.2 inches. What size rim fits a 285/35R18 tire? A 285/35R18 tire fits on a rim that is 18 inches in diameter. What does the 35 in a 285/35R18 tire mean? The 35 in a 285/35R18 tire refers to the aspect ratio, meaning the height of the tire's sidewall is 35% of its width.When converted to inches, the equivalent of a LT265/60R18 tire size is 30.6x10.4R18. It means that: height overall (or diameter) is 30.6 inches. tread width is 10.4 inches. wheel diameter is 18 inches. Learn more →. LT265/60R18 tire size chart.The osmolarity of normal human blood plasma is approximately 300 mosmoles per liter, with a general range of 285 to 310 mosmoles per liter. Osmolarity measures the concentration of...285/60R18 : Rim Size 18 Inches : Section Width 285 Millimeters : Tire Aspect Ratio 60.0 : Load Index 116.0 : Speed Rating V : Load Capacity 2756 Pounds : Tread Depth 11 Inches : Tread Type Asymmetrical : Tire Diameter 31.5 inches : Item Weight 46 Pounds : Manufacturer Nexen : ModelJune 30, 2023 by AR Jeet - Tire Mechanic. The 265/60R18 tire has an overall diameter of approximately 30.5 inches, a section width of roughly 10.4 inches, and is designed to be mounted on an 18-inch diameter rim. The equivalent tire size in the high flotation system is …TIRE SIZE GUIDE - WHEEL WIDTH MINIMUM AND MAXIMUM. TIRE SIZE. MINIMUM WHEEL WIDTH. MAXIMUM WHEEL WIDTH. 165/60R12. 4". 5". 145/70R13. 4".285/60R20 tires have a diameter of 33.5", a section width of 11.2", and a wheel diameter of 20". The circumference is 105.1" and they have 603 revolutions per mile. Generally they are approved to be mounted on 8-10" wide wheels. Specs may vary by manufacturer. learn more.And a 275 is actually a 33" tall tire. The 285 is only 32" tall. Plus the 275's are a lot cheaper. 08' Sierra SLT 5.3 Z-71, RC 3.5 lift up front with 4" rear block lift, Pro Comp 18x9 0 offset Helldorado wheels w/ 275/70/18 Nitto Trail Grapplers, T-rex billet grill HyperTech Max, Dynomax VT. Like.The 24-inch iMac comes with a built-in stand. You can remove this stand and add a VESA mount adapter to use the iMac with VESA-compliant mounts. VESA-compliant mounts are the ind...155/60R18 = 25.3X6.1R18 215/45R18 = 25.6x8.5R18 225/40R18 = 25.1x8.9R18 235/40R18 = 25.4x9.3R18 245/40R18 = 25.7x9.6R18 255/35R18 = 25x10R18 265/35R18 = …Send us your suggestions and ideas for the tire size calculator! 285/60-R18 tires are 1.42 inches (36 mm) larger in diameter than 255/60-R18 tires and the speedometer difference is 4.5%.265/60R18 tire conversion. Convert 265/60R18 tire size to inches and compare prices on available tires from the top brands online. Why Buy Tires Online? Tire Deals/Promos Readers Rides Contact. ... 33 Inch Tires 35 Inch Tires 37 Inch Tires 285/75R16 265/70R17 285/70R17 275/70R18 275/60R20.OR Buy 4 for. $431.50 /EA. Qty. 4. Select a store to see availability. Add to booking. View Product Details. See the entire range of 285/60R18 tyres available from JAX Tyres & Auto. Order online or call JAX Tyres & Auto on 1300 367 897 for the best advice and best 285/60R18 prices.The 205/60R18 tire has an overall diameter of 27.7 inches, a section width of 8.1 inches, and can be mounted on 18 x 5.0-7.5 inches rim.Designed with the highest quality in mind, Yokohama 285/60R18 inch tires that are stored on our digital shelves offer outstanding performance and stunning look. Make your choice now, and equip your vehicle with the best 285/60R18 tires that money can buy. ... Size: 285/60R18. $1,387.96.2523 Views 0. 285/60R20 tires are 33.5″ tall, have a section width of 11.2″, and fit wheels with a diameter of 20. The circumference is 105.1″ that translates into 603 revolutions per mile. As a rule, they can be mounted on the wheels with 20″ x 8-10″ rim width. In the high flotation system, the equivalent tire size is 33.5×11.2R20.The tire size 225/60R18 is equivalent to 28.6×8.9R18 in inches, has a diameter of 28.6 inches (727.2mm), a section width of 8.9 inches (225mm), a wheel diameter of 18 inches (457mm), and is approved to be mounted on 6.0-8.0 inches (152.4 – 203.2mm) wide wheels. This size is a popular choice among SUV and Crossover owners, appreciated for …285/60R18 = 31.5x11.2R18. 32" Tire Diameter 255/70R18 = 32.1x10R18 ... 33 Inch Tires 35 Inch Tires 37 Inch Tires 285/75R16 265/70R17 285/70R17 275/70R18 275/60R20 ...80 Pound per Square Inch: Ply Rating: 10-Ply: Rim Width: 8All-Terrain Tire. The Terra Grappler ® G
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Zeon LTZ tires perform well in a variety of environments including and sand. Its tread design also provides good wear capability. The 285/60R18 Cooper Zeon LTZ has a diameter of 31.5", a width of 11.4", mounts on a 18" rim and has 658 revolutions per mile. It weighs 46 lbs, has a max load of 3086 lbs, a maximum air pressure of 50 psi, a tread ...The 285/50R20 tire's sidewall height is 5.6 inches or 142.5 mm. This is measured from the rim's edge to the tread. It acts as a flexible cushion, protecting the rim and improving ride comfort. Its size influences handling and ride characteristics, with larger sidewalls providing a smoother ride at the cost of precision steering.The 305/60R18 tire has an overall diameter of approximately 32.4 inches, a section width of roughly 12 inches, and is designed to be mounted on an 18-inch diameter rim. The equivalent tire size in the high flotation system is 32.4x12R18.See the entire range of 285/60R18 tyres available from JAX Tyres & Auto. Order online or call JAX Tyres & Auto on 1300 367 897 for the best advice and best 285/60R18 prices. Back from the Dark side. NT VRX, Ironbark, Dobinson suspension, Kanati muddies 275 65 18, Boo's bash plates (now with dents ) vladguan.285/60R18 Tire Sizing and Conversions. 285/60R18 tire conversion information. Convert 285/60R18 tire size to inches and millimeters. Includes a table of compatible alternative …In the tire comparison table above, you can see a detailed calculation of the size difference between 265/65 R18 and 285/60 R18 tire. The calculation results are presented in the form of visual infographics, on which tire with size 265/65 R18 is on top, and tire with size 285/60 R18 below. Both in the table and in the graph, the tires are ...How to convert LT285 60R18 to inches? First of all, we need to divide 285 mm (width) by 25.4 (mm to inch conversion), which will give us a width of 11.2″. Then, 60% of the 11.2″ will result in 6.7″ sidewall. To get the total height or tire diameter, we need to sum the 18″ rim diameter with two of the sidewall heights.The 275/65R18 conversion is very simple. There are 25.4 millimeters in an inch. All we have to do is divide tread width and sidewall height by 25.4 to convert to inches. To convert the tire width to inches, you divide 275 mm by 25.4, yielding a tire width of approximately 10.8 inches. To find the sidewall height in inches, you calculate 65% of ...Learn the exact measurements of the 275/60r18 tire size in inches with our detailed breakdown and a user-friendly table chart for quick size comparisons.Hankook Dynapro HP2 All-Season Radial Tire -285/60R18 116V . Brand: HANKOOK. 4.0 4.0 out of 5 stars 1 rating | Search this page . $209.55 $ 209. 55. Includes $18.90 $18.90 Amazon discount. ... 32 inches : Item Weight 38 Pounds : Manufacturer Hankook : Model Dynapro HP2 : Item Weight 38 pounds : Item model number 1015268 : …285/60R18 : Section Width 285 Millimeters : Load Capacity 2756 Pounds : Tread Depth 14 32nds : Rim Width 8.5 Inches : Tire Diameter 31.46 : Item Weight 44.4 Pounds : Manufacturer Bridgestone : Model Blizzak DM-V2 : Item Weight 44.4 pounds : Country of Origin Japan :285/60R18 size tyre prices range from $150 to $599 depending on Quality, Brand & location in Australia. ... The 18 means 18 inches - This is the diameter of the wheel rim from edge to edge. Understanding tyre sizes can be tricky, but hopefully, this explanation has clarified the meaning behind the numbers on your tyres.275/60R18 tire conversion information. Convert 275/60R18 tire size to inches and millimeters. Includes a table of compatible alternative tire sizes.285 60 R18 Tires from 86.12 C$ Find best prices for 1,353 Tires in Canada and save money with Tire.ca (Date Jun. 1, 2024).As for the last part (r18), it signifies the rim diameter in inches. So, a 275/60r18 tire is equivalent to a tire with a width of approximately 10.83 inches, a sidewall height of around 6.50 inches, and designed to fit an 18-inch rim. ... 275/60r18 vs 285/60r18. In this battle of the "60," we have the 275/60r18 facing off against the 285 ...275-60R18 tire size comparison with 1010tires.com Tire Size calculator. Use our tire calculator to compare tire sizes based on tire diameter, radius, sidewall height, circumference, revs per mile and speedometer difference. ... 285/60R18 8.00in: 10.00in: 31.46" 1.52% 265/65R18 7.50in: 9.50in: 31.56" 1.84% Tread Width ProfileAnd don't forget about a 33/10.5 tire if you want to run a 33" tire but don't need the extra inch of width a 285 tire gives you. Could give you the ability to use a wheel with closer to a zero offset. The Kenda Klever RT is a great option in this size. Last picture is a side by side comparison of a 16" Pro rim with a 285/75 tire and a ...Calculate. 15-inch Wheel Conversion Chart. 16-inch Wheel Conversion Chart. 17-inch Wheel Conversion Chart. 18-inch Wheel Conversion Chart. 20-inch …Michelin Defender LTX M/S - 285/60R18/XL 120H Tire. Get a $30 as a statement credit when you open a new account and make $30 in Sam's Club purchases within 30 days¹. ¹Offer subject to credit approval. To qualify, you must (i) apply and be approved for a Sam's Club® credit card account and (ii) use your new account to make Sam's Club ...When converted to inches, the equivalent of a LT285/65R18 tire size is 32.6x11.2R18. It means that: height overall (or diameter) is 32.6 inches. tread width is 11.2 inches. wheel diameter is 18 inches. Learn more →. LT285/65R18 tire size chart.And don't forget about a 33/10.5 tire if you want to run a 33" tire but don't need the extra inch of width a 285 tire gives you. Could give you the ability to use a wheel with closer to a zero offset. The Kenda Klever RT is a great option in this size. Last picture is a side by side comparison of a 16" Pro rim with a 285/75 tire and a ...The Cooper Discoverer H/T Plus All-Season 285/60R18 116T Tire is an all-season highway sport truck tire for drivers of SUVs and light duty pickup trucks looking for a ‘sporty' look. ... 285/60R18 116T : Rim Size 18 Inches : Section Width 285 Millimeters : Tire Aspect Ratio 60.0 : Load Index 101.0 : Speed Rating T : Load ...Send us your suggestions and ideas for the tire size calculator! 285/60-R18 tires are 0.12 inches (3.1 mm) smaller in diameter than 285/65-R17 tires and the speedometer difference is 0.4%. To calculate a metric tire size into inches you multiply the