I track Miatas and for best performance use 225 width tires on 9" wheels. Find out about the rules, regulations and standards for constructing or modifying a vehicle in Western Australia, including modifications to heavy vehicles and vehicles for people with special needs. The biggest legal tyre size is literally dependent on the vehicle you drive. Maybe the ultimate compromise is to find some alloy wheels second hand off a 17 or 16 Vitara (after finding out that they fit) and going with them? In this example, the width is 185. A very useful tyre calculator when searching for tyres that are a different size then stock. A lot of people know their 4WDs are illegal, and dont seem to care. If so where can find this information? First step is to find a quality engineer, although it sounds like youve already been trying that. Column "Diff" may have percentages in the range from -3% to +4%(+5% for Winter tyres), which are allowed. Youll have to ring the department of transport over there and ask. Do you know of any engineers in SA that could sign off a 4 wheel drive? Join Date: Feb 2004. If you want more information, check out our page covering 4WD Legalities. For more tyreand wheel information check this PDF. Just to clarify tyre sizes, any car that is placarded with 265/70/16 tyres, most common size, cannot run a 33 or 285/75/16 because this exceeds the 50mm difference. Every 4WD should have a sticker which details the factory tyre size. When a tyre is brand new, it starts off with about 8mm of tread depth - measuring from the bottom surface of the tyre to the top of the tread. Overall wheel rim width cant exceed 177.8mm (seven inches) unless specified by the manufacturer, and cars that are equipped with 177.8mm rims cant have higher width rims fitted at all. We'll reach out to you as soon as we can. Our tyre calculator makes this happen for you. This is a tyre size chart i saw at a 4wd shop workshop the other day. Using our Tire Size Calculator, you can get exact measurements for your current tire size. Heres the thing, Raising 44 cars can be compromised if your AU compliance plate category says MA and not MC! The thumb rule to calculate sidewall height says that for every 10mm increase in width of tyre, the sidewall height (or aspect ratio) should be reduced by 5%. Ive spoken to insurance companies on the past, and told them of lift kits and bigger tyres on several vehicles, and they all say Sure, no worries, Ive added it to your list of modifications and you are covered. I totally agree; there are plenty of modified 4WDs that handle better than they did from the factory showroom, but unfortunately there are serious risks of driving a 4WD that isnt legal over here. Select the Dimension of your Tyres to Determine the Overall Diameter. As one of Australias leading multibranded fuel cards, the Tyrepower Fleet Card gives you the power of so much more. Incorrect tyre pressure But what I would like to know is if I have my 4wd set up within all nt laws and then travel interstate with 100mm over all lift, am I breaking the law. You must log in or register to reply here. difference between general purpose and special purpose processor . For starters, lets consider what is legal, and then you will know where you stand right now. See below for more information on what this refers to. Location: Bombay. These safety standards are specified in the Australian Design Rules (ADR), and they include the following: The wheel and tyre must be effectively covered by a guard. If you have an accident and they trace it back to the fact that the tyres youve fitted contributed or caused it, you will be in trouble regardless of what insurance you have. If you search, youll find that the term DPF is not mentioned anywhere in this article, so not sure what you are complaining about. Tire diameter measurements vary for each pattern or brand. the standard tyre size is 275/70r16, and I've gone with 285/75r16. If Im honest, I reckon if you do find an engineer who will approve it youll be up for a lot of money. Example: The height of this tyre is 65% of . Note: Tyres showing wear on one side, or showing feathered edges to the tread pattern, are often indicative of mechanical maladjustment. Designed & Developed by Pat Callinan Media. Tyre Calculator. 185R14. Tire Size Calculator is an app that gives you concise info and intuitive interactive ways to help you: 1. This is why knowing how to measure your tyre tread is so important. NEW feature: Or, You can display adequate tyres for all three Plus Sizing methods: Plus Sizing Calculator. Dec 16, 2016 #1 I found this from Mr 4x4 in my inbox this morning. Effectively, you are limited to a 50mm bigger tyre and 25mm suspension lift without engineering. So which websites do 1inch lifts cant seem to find any. Is the 8.25-16 on toyota 80 legal regardless the actual diameter? call us on 1300 367 897 or search by vehicle registration below. An Xtrail will go to a lot of places. Tyre dimensions explained. There are many more possibilities and choices in metric tyres so the use of a tyre size calculator can come in handy. Any thoughts? Rest assured, our staff have the experience and the know-how to find the right match for whatever fitment you are looking for. I think there is going to be a lot of cracking down in the near future! Need tyres? This formula is used by the leading tyre manufacturers. All punctured or damaged tyres must be removed from the wheel for internal and external examination to ensure there is no hidden secondary damage which may later cause tyre failure. Black Ice 2007 Nissan Navara ST-X 4x2 V6 6 Speed . We'll come to you - at home, work or even while you shop, A beginner's guide to the basics of tyres, Learn about all replacement indicators and how to maximise the lifespan of your tyres, Learn about the maximum load a tyre can carry, The tyre pressure needs to be checked regularly. It is also dangerous to drive because: Your tyre will lose grip and traction. Its only the inch below the diff that raises the vehicle. Get recommended upgrade/replacement tire sizes, with adjustable difference variables (rim size diff./section width diff./circumference diff.) select your original equipment(OE) tyre size, the new wheel/rim diameter So for someone like me even 31 (stock) tires are over the limit because I have flat fender flares installed. between new tire and old tire. Discover alternate tyres based on your rim size. So, if I were to put e.g steel rims from a lower-spec model, with 225/70/R16 tyres on, am I breaking the law, or voiding insurance? Keep reading to learn more about Australian tyre safety standards, including how to measure your tyre tread depth. Without them, you won't be able to go anywhere. This tire calculator is for information . Had the same problem when getting tyres for the Troopy. Get special deals and offers on cheap tyres and fitment Australia wide. To be considered roadworthy your tyres must be free from cuts, cracks . The diagram below shows the permissibile conversion from a 15" through to a 20" tyre. For example, a 205/55 R16 tyre has the same diameter (631.8mm, radius of 315.9mm) as a skinny 125/80/R17 space saver. The first number on a metric tyre is the width. Tire fuel efficiency-economy and Fuel efficient, low rolling resistance tires, Where to find the correct tire pressure for your car, High Load (HL) Tires for Electric, Hybrid Cars and Suvs, Tire Size Calculator - Compare Tire Dimensions, Tire Size Converter - Tire Size Conversion, Set Higher Winter Tire Pressure In Your Garage, Light Truck and a tire used on light trucks, Tire Size Conversion Chart - Metric to Inches - by RD, Tire Size Conversion Chart - Metric to Inches - by OD, Tire Size Conversion Chart - Inches to Metric - by RD, Tire Size Conversion Chart - Inches to Metric - by OD, Rim width range and Measuring rim width for Tire Size, Tire Pressure Conversion Charts - bar to psi and psi to bar, Tyre size chart, Tyre conversion chart, Tyre speed rating, Tyres must also meet several test standards, including resistance to bead unseating and tyre strength, as well tyre endurance and high-speed performance. Tyre Disposal Do I need to notify the insurance company about this modification? On top of this, if you do any towing, there are 7 weights that you need to comply with, which confuses everyone. Also browse our tyre categories and deals pages for Jeep tyres, 4X4 tyres, cheap new tyres, all weather tyres, cheap truck tyres, all season tyres, and tyres with free shipping. Those Suzukis go really well off road; I would give it a whirl on a beach under some controlled circumstances, and see how it is. If it is over the manufacturers capacity, your vehicle is not legal. The truck weve been waiting for has been durability tested Down Under, Ranger Raptor wins Baja 1000 and drives home, Why the Ranger Raptor has changed the game. Tip: To determine if the tyres you have selected require certification you need to look at the tyre placard fitted to the vehicle by the manufacturer. Are 1inch coil spacers any good. just curious This is because tread depth is an important aspect of tyre care, improving safety when braking hard or quickly accelerating out of a dangerous situation. How to choose the right tyres for my car? Therefore you need to find 20" tyres with a rolling distance that falls between 651.4mm and 679.4mm to be legal. That is of course, unless there are other models in your range with only cosmetic changes that run bigger tyres. It can also go the other way, adversely affecting the way a car behaves on the road. An example is 70 series Landcruiser. In Western Australia, VSB 14 has been adopted, which is a document that goes through the large majority of modifications done to vehicles, and what is legal or illegal. If we have a look at two tyre makers product lines that we have experience with in here at Adventure 4WD there's a couple of alternatives that offer far better strength. If you know for sure that your vehicle is illegal (essentially if your roof height has gone up by more than 50mm from factory), you need to do a lane change test, and have an engineer to sign off on the modifications. Tire Calculator Notes: Tire diameter can vary slightly for each tire model. Ford Ranger Raptor ready to rip in for NSW police! width affects the tyre choice also, besides its diameter. I think they do this as its the only measurement that goes up with increased tyre size, suspension and body lifts. One of the main points here that is important for 4WDers is the one that relates to tyre size modification. We'll come to you - at home, work or even while you shop, A beginner's guide to the basics of tyres, Learn about all replacement indicators and how to maximise the lifespan of your tyres, Learn about the maximum load a tyre can carry, The tyre pressure needs to be checked regularly. Divide this by 25.4 to get inch equivalent. Guide to safely buying & selling a car online, Video: Police Highway Patrol car rolling on bald tyres, man claims, Tesla overtakes Ford in US brand loyalty survey, Tesla admits its semi-autonomous driving tech is not the worlds most advanced, Drive Car of the Year 2023 all the winners UPDATE, Vehicle emissions kill ten times more Australians than the road toll, research claims. Not only does tyre pressure change the measured diamter, but so does tyre speed. Find your tyre size based on its sidewall code. You can use it for a wide variety of tyres including street, racetrack, trailer, spare, off-road and even extreme mud-terrain tyres. simple it might look on the first sight, it requires a tire professional with an experience and testing Anything below 1.6mm is considered illegal in Australia. If I go to tyre sales websites and enter the vehicle details, they only give 17 and 18 options. This ADR specifies the labelling and construction standards of tyres fitted to Australian cars. Cheers mate. This second number is that percent. 14 inches - 10 tyres. The Drive Team brings you trusted, expert reviews of your next new car and is home to the best new car awards program in Australia. What happens when they defect you? The 285 is actually 7mm too big. Modify or construct a vehicle. Bigger tyres make your 4WD brake poorly, and suspension lifts add to the chance of a roll over, so its not all that difficult to prove they contributed to an accident. Australia and New Zealand. Please choose a category from the left menu. Tyre Size Calculator. This is the maximum legal lift kit height in WA as long as you run the factory size tyre. Not every modification will make your 4WD more capable; there are a lot of Downsides to 4WD modifications that people dont think about. I, ANDREW BROAD, Assistant Minister to the Deputy Prime Minister, determine this vehicle standard under section 7 of the Motor Vehicle Standards Act 1989. When you fit larger tyres, the vehicle height only goes up by half of the tyre height difference. Suck it guys. Legally in Australia, tyres must have a minimum tread depth of 1.6mm. Select your tyre size and find the right car tyre for you. Tires calculator. DPF is not in every diesel..they were trialed in automatic Nissan D40 for example in 2009/10then removed..my 2011 auto does not have a dpfplease get your facts right before you publish However, the poor sales bloke (or lady) has no idea what is legal or not, and in the event of an accident, if your vehicle is outside of the regulations, you may have a claim refused. The Prestige being the top-of-the-pops 44 model with various extras including low range. In the last two years more than 160,000 calculations have been made by over 33,000 people! Base on the information you gave me 1 year ago: they go off the size listed, not its actual measurement. Next thing you should do is to find the right wheel for the chosen tire size. The sidewall is the outer wall of the tire, rather than the tread that contacts the road. . Save up to 40% online. Example not requiring certification: Fitting a replacement fuel tank of equal capacity using the original manufacturers mounting points. The entire point of having vehicle standards is to ensure that people drive safe vehicles on the road. The nominal tyre size can be quite different to the measured tyre size. I dunno why theyd issue these on something with so much 44 going on. By J. ames Cleary -25 Feb 2023. . MA is classed as a passenger car and can only have 15mm Total diameter Tyre increase, 7.5mm Tyre lift! If the 4wd has 35s and its engineered for 35s. represents the ratio of the difference between OT and OE tyre diameter and the difference between Checklist for fitting upsized wheels and tyres Tyres must be legal for road use Tyres must match or exceed the speed and load rating for the vehicle . They need to make things standardized across the country, and get the police on the same page. W8(%0YdTMg7mc:*tN|=qA}sUrUs\|D[W;4.LXrwf4zKB1ifMn(i( l&'I1el~W7}O)#"a$?KdYkl #q;V;}B@SETJLs_Z~"Nt"EwV20pWZHocZ@cE2FcT]x'E #J It is not a 100% guarantee of correct fitment. How to choose the right tyres for my car? It also solves the problem of deciding what tyre you would like to run if you have inch measurements in mind but can't find a company that manufactures that inch size tyre. Shop for Tires. MC is 44 for off road use. Get your wheels professionally aligned (every six months). Example: 195mm. The tire will stick out 15 mm farther. Buy now. Ride Height and Gearing to Remains the Same. This area isn't so This formula is used by the leading tyre manufacturers. The tyre size calculator shows the effect of changing tyres. (+5% for Winter tires) of the difference between the OE overall tyre diameter and the OE wheel diameter This applies to the central three-fourths area of a tyre's circumferential tread and across its entire circumference, all the way around. Hi All, (OE TD - OE WD or 2 x OE sidewall height). Ive just bought a set of used tires(205/60/16). For the purpose of this post, I will only touch on body/suspension lifts and tyre sizes. But the placard on the door frame states Recommended tyre size 225/60/R18 100H (no mention of other sizes). Use our comprehensive online wheel size calculator to visualise different alloy wheels and tyre combinations. That model may have larger brakes; the only way youd know is to ask on a Suzuki Vitara Facebook group. Many also refer to the National Code of Practice and VSB 14, but there are also some state regulations that can differ. Inspect for uneven bulges, cuts and cracks. It's NSW reg'd and passed rego inspection just two days ago. This states that your roof height may only be lifted by 2 inch (or 50mm) from the factory (or standard height) before it needs to go through a lane change test. you needs, but only to give you a suggestion in your quest for the final answer. Example requiring certification: Fitting an alternative fuel tank or repositioning of an existing fuel tank to non-original mounting points. http://www.rms.nsw.gov.au/registration/downloads/vsi/vsi6.pdf, Have a clearer view with Next Gen Towing Mirrors, Evolution of the Ford Ranger in Australia, How this Next Gen Everest was turned into a beach touring machine. It will take longer for your brakes to stop the car on wet surfaces. The formulas will also show you the matching ExplorOz Wheel covers that match your tyres. 378 0 obj <>stream The condition of your tyres is imperative for the overall performance and safety of your vehicle. Tyre Condition. 31X10.5R15. The factory size of toyota 80 is 7.5-16 or 275/70/16. Ensure tyres have adequate tread depth. experience with the Tyre Size Calculator, What happens when my Tyre Tread Depth is below the legal limit? Great to hear your engineering was so cheap. Find the series of numbers on the sidewall. The New South Wales Roads and Maritime Services have released a concise document that deals with many of the new rules that surround the modification of any vehicle under 4.5 tonnes GVM, and required certification. When using a tyre size comparison tool, it's important to know the difference in the outer diameter. Learn more about how it works, A tyre comparison guide to help you with your decision making, Wheel alignments are critical to balance the tread wear and performance of your new tyres, What is a wheel offset? Example requiring certification: Replacing 215/65R17 (712 mm overall diameter) tyres with 265/65R17 (776 mm overall diameter) tyres, an increase in overall diameter of 64 mm, or 8%. Increases in wheel track (the distance between the left- and right-hand wheel) cant be greater than 25mm beyond manufacturers specification. (4th March 2011, 14:41 #4: GTO. This exceeds the 50mm increase for the SX versions, but is within the 50mm increase for the LSU versions, and as a result we've gone for them. You will find that theres no benefit going too wide though, and it will increase the chance of it scrubbing. should be the OE tyre size) diameter. Tire Size Calculator - tire & wheel plus sizing courtesy of 1010tires in Canada . More importantly, they all have fine print which specifically states that your 4WD must comply with the road regulations, and if it doesnt, refusal of claims can occur. A great, cheap option for light trucks and vans, providing low noise and comfort on the road. Legal Disclaimer Tire Pressure Calculator Limitations. inn of the mountain gods gift shop / circle k workday login / legal tyre size calculator nsw. 5. In many cases, a vehicle with 50mm tyres and a quality 2 inch lift kit will handle better on the road, but you still need to prove it is safe by having an engineer sign it off. Here's all the information on the tire sidewall quickly decoded: 1) The width of the tires in millimeters. In fact, the actual diameter of 8.25-16 is 865mm. Perhaps theres some other reason, like the Prestige is a V6 and may have bigger brakes that wont fit in a 16 rim. So, how does an illegal 4WD add risk to the driver? Email Us. Many 4wds over here are modified, my 2012 hilux has 31s and a 2 lift. Our tool gives this in percentages: a positive number is larger/wider, while a minus number represents a negative change. . 3. Calculate metric or inch tyre dimensions and compare to similar tyre sizes. 4) Rim diameter in inches. Do the same for another set you want to compare them with. There are a number of factors involved in ensuring a smooth ride when driving, but without the appropriate tyre tread depth, you may quickly find your car difficult to control particularly in wet weather or other slippery road surfaces. Heres a guideline to whats legal in the major states of Australia. %. Not only will this help to prevent accidents, but it will help to improve the performance of your vehicle. If the tyres you are running are bigger than 50mm than the number stated, you have a problem. Do the exercise and see what it comes back at, but I reckon removing some of the lift and tyre size is going to be the way forward. In Western Australia rims cant exceed the manufacturers specifications by more than 25mm, or one inch. of replacing a wheel with a larger one and mounting a suitable tyre on that wheel, the tyre with a What is the max legal tyre size in Australia for an 80 series? I have Fitted king lifting springs and raised 30mmAnd now looking at Tyre options. Just type in the metric fields and click convert to inches. 7.00R16. and Terms of Service apply. I hear people say all the time My insurance company have insured my 4WD with a 3 inch lift and 35 inch tyres, and they genuinely believe that their vehicle is insured. hU[o0+~41qB"H^ ZHPNe;5; For more tyreand wheel information check this Vicroads PDF. 5) Load index (the maximum load capacity of the tire) 6) Speed index (the maximum speed of the tire) If you have an accident with illegal mods, you could be in trouble. Ive written a very, very simple guide that explains it all: Towing capacity; a simple guide to keep you legal. If caught driving an illegal tyre, you will receive a fine and demerit PER TYRE below the legal limit- which varies per state/territory. 175/65R14. for the selected tire size. Learn more about how it works, A tyre comparison guide to help you with your decision making, Wheel alignments are critical to balance the tread wear and performance of your new tyres, What is a wheel offset? They are inspected on the side of the road, and if the police believe the vehicle isnt roadworthy, you may get a yellow sticker. Would be much appreciated. https://bigtyre.com.au/store/P2592/825r16-haulmax-att304-set-14-ply-tube-tyre Look at the tyre size on your placard and you can go 50mm above that in WA. Alternatively ring them. Do electric vehicles really need specialty tyres? So what happens when your tread starts to wear down? If you have any questions about tyre sizes, please give us a call on 02 8880 4628 or you may find this online tool helpful. Im looking at lifting my Hilux and was just wondering if the roof height included any roof attachments, i.e awning, roof rack, gas bottle holder etc or i s it worked from the manufacturers standard roof height from their vehicle specifications? NOTICE: Tire dimensions presented in the resulting table, as possible new tire dimensions for the Learn about all terrain tyres and when theyre best used. Chris. Any accidents caused by illegal tyres may not be covered by your insurance company. This is where things get a little interesting just because you are running a lift kit and bigger tyres does not necessarily mean your vehicle is unsafe, providing the work has been done correctly with quality components. The tire size comparison calculator takes the measurements of two tyres and compares the diameter, width, sidewall, circumference, and revolutions per mile. So that's 42.5mm increase and my suspension setup has lifted the car pretty close to 50mm. Its not a huge difference between the two but the profile difference between 75% of the tread width and 70% can be enough of a difference to put your speedo out of whack too? Compare tyre specs (tyre diameter, sidewall width and height and tread width) side by side. Fact is though, lots of 4WDs across Australia arent legal. Make it a habit to check them once a month. Multiply a tyre's width by the aspect ratio to get aspect height (205 x 0.55 = 112.75) Convert into inches (112.75 / 25.4 = 4.44) Double the aspect height (4.44 x 2 = 8.88) Add inside diameter of tyre (8.88 + 16 = 24.88) When changing tyre size, the tyres should not have more than a 1% difference in diameter - less than 0.5% would be ideal. You can find a list of engineers to speak to here. dimension, the wheel diameter, but you also need to know the wheel width. NO need to pay twice for the same app! The difference in diameter between the two tyres is 8.9mm or 1.13% which is acceptable. We have tyres to fit all your driving needs and all budgets. Aspect Ratio: The height of your tyre from the base of the tread to the rim, as a percentage of the tread width. If you are going to be lifting vehicles, you need to look at VSB 14. In fact, the actual diameter of the tyre is not larger than 15mm of the size of 225/40/18. Have a chat to ARB they might have a spring setup that suits. In America, it is common for off road vehicles to see 4-6 inches of lift and 35-37 inch tires (usually on jeeps, not many twin solid axle vehicles left here) while saftey is important, the Aussie standards seem way over done. NSW In NSW you are allowed to fit wheels that are up to 26mm wider than the manufacturer's specified wheels without needing to notify the Roads and Traffic Authority (RTA). The X-trail T31 2007 44 is rated MC. The size should be printed underneath the tire manufacturer name, just above the rim of the tire. Regularly get your tyres rotated to ensure even tread wear. . There are a lot of heavy duty springs that will lift the vehicle around 30mm. At the end of the day the driver makes most of the difference. Before lay down any money, it would certainly pay to have a close look at the relevant documents to ensure that any mods you might accidentally do incorrectly wont land you in hot water further down the track. Thank you very much, Aaron, any suggestions or tips would be greatly appreciated.
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