This applies to the central three-fourths area of a tyre's circumferential tread and across its entire circumference, all the way around. You can use it for a wide variety of tyres including street, racetrack, trailer, spare, off-road and even extreme mud-terrain tyres. Column "Winter tyres only" that has an asterisk in a table row, means that the row tyre size is acceptable only for New Size. You can find a list of engineers to speak to here. If you are going to be lifting vehicles, you need to look at VSB 14. Discover alternate tyres based on your rim size. 175/65R14. The new rule allows a vehicle equipped with ESC to have a suspension lift measured at 50mm and a tyre overall diameter increase of 50mm (thereby increasing ride height by 25mm). I hope this chart can help people find out how big there tyres are. The #vanlife world needs an off-roader, is the Ford Transit Trail the solution? when the tyre plackard states tyre size as 255x70x16 are you allowed to put 265x75x16 on and not run into any problems with the cops . Youre also not allowed to fit wheel spacers unless they are factory fitted while steering limit stops cant be adjusted to allow the fitting of larger rims or tyres. It will take longer for your brakes to stop the car on wet surfaces. Unless you planning on doing serious off road work, Id get the 16s. In Australia, the legal minimum tread depth for passenger car tyres is 1.6mm. 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. 7.00-16. And hopefully stop people starting all the posts about how big there tyres are. 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. The diameter of the new wheel and tyre combination cant be more than 15mm beyond the largest diameter combination specified by the manufacturer for that car. Tyre and Rim Standards Manual, issued by the Tyre and Rim Association of Australia This can be calculated using the following; RD = 2 x (60% of 215) + 16" x 25.4mm. It's time to get a new set of tyres to avoid possible blowouts and accidents. I would assume they go off the size listed, not its actual measurement. By J. ames Cleary -25 Feb 2023. . for the Aus Navara is a 255/70 . If one of the tyre sizes marked on the placard (eg 215/65R17) matches the marking on the tyre sidewalls, certification is not . It probably is over regulated, but it does stop a lot of people doing stupid things too. I want to increase to either a 265/75/16 (803.9mm) or a bigger 275/70/17 (816.8mm). How to Make Sure Your Tyre Tread Depth is Not Illegal. Therefore you need to find 20" tyres with a rolling distance that falls between 651.4mm and 679.4mm to be legal. Type your rego. Divide this by 25.4 to get inch equivalent. Tire is 5 mm closer to suspension components. Additionally, wheel width cannot be increased by over 25mm of the widest factory option without needed certification. Fact is though, lots of 4WDs across Australia arent legal. Suck it guys. Dated 25 October 2018. In Western Australia rims cant exceed the manufacturers specifications by more than 25mm, or one inch. Consider the following, at highway tire pressures you have maximum clearance under the diffs, but drop the pressures from 40 psi to say 20 psi than your diffs are earthward bound, bigger tyres allow more air under the diffs, bigger suspension lift puts the driver into rarified air but does nothing for diff clearance its only the tyres that does this. Any thoughts? Let us know about your The GU would be one of few that can legally run 285/75r16 or equivalent these days. Anything below 1.6mm is considered illegal in Australia. What sets us apart is our tyre suggestion guide. 31X10.5R15. The tire will stick out 15 mm farther. If you have modified any of the following items on your 4WD itwould be a very good idea to do some reading up: That said, there are 32 ways to make your 4WD illegal which are pretty straight forward. In many cases, unless the assessor is very knowledgeable, or your vehicle is obviously unroadworthy, your claim will slide by with no problem at all. Id like to know that Im not sharing the road with people who are driving unsafe vehicles. I track Miatas and for best performance use 225 width tires on 9" wheels. Rim will stick out 18 mm farther. Here's a guideline to what's legal in the major states of Australia. See below for more information on what this refers to. Every 4WD should have a sticker which details the factory tyre size. Every tyre must meet the requirements of ADR 23 before it is fitted to a new or used car. 155/70R13. If you want to read through the document, you can find it here. Let me know what you reckon below! OE tyre and OE wheel diameter, presented as percentage(%). There are three main ways of measuring/checking your tyre tread depth. Section width x 75% (the aspect ratio) x (two sidewalls): 265 x 75% = 198.75. The second number on a metric tyre is to calculate the side wall measurement. Location: Bombay. Cop at an rbt chatted me about the 285/75r16 tyres that have been on the 80's wheels for the last 7 yrs. The third number generally preceded by an "R" is the wheel diameter. As with most other jurisdictions, the wheel must be contained within the bodywork of the car, including wheel arch flares. You may also need to consider a wheel alignment service. Cop threatened me with sending the 80 for a blue slip inspection. Our tyre size comparison calculator takes the measurements of two tyres and compares the overall diameter, tread width, sidewall, and difference percentage (%). How to choose the right tyres for my car? Tyre Size Calculator. Compare tyre specs (tyre diameter, sidewall width and height and tread width) side by side. The only exception is if there are larger tyres in your model range; see this for more information 50mm tyre size increase. Black Ice 2007 Nissan Navara ST-X 4x2 V6 6 Speed . Aspect Ratio: The height of your tyre from the base of the tread to the rim, as a percentage of the tread width. simple it might look on the first sight, it requires a tire professional with an experience and testing And like other states, the wheels cant protrude from the bodywork of the car when theyre in the straight ahead position. This formula is used by the leading tyre manufacturers. The problem though, is that too many people are unaware of what the implications of having modifications to their vehicle can result in. We have tyres to fit all your driving needs and all budgets. hmK0%XACj 28,6/i! @ QPRH>R3+s6nn|. legal tyre size calculator nsw. However, I do believe there is an unhealthy obsession with fitting Bigger Tyres and lift kits, without proper consideration as to the benefits and risks associated with doing so. and the legal obligations on vehicle owners, and every attempt has been made to ensure the . Example: 285/75R16 (285 X 75 / 2540 x 2) + 16 = 32.8 inches tall. They need to make things standardized across the country, and get the police on the same page. The link provided is just a tyre size calculator and not a comprehensive tyre guide. In NSW you are allowed to fit wheels that are up to 26mm wider than the manufacturers specified wheels without needing to notify the Roads and Traffic Authority (RTA). Is the 8.25-16 on toyota 80 legal regardless the actual diameter? Rest assured, our staff have the experience and the know-how to find the right match for whatever fitment you are looking for. Do I need engineering approval? 8. endstream endobj 381 0 obj <>stream The sidewall height is a percentage of the width of the tyre. 175/70R13. Not only will this help to prevent accidents, but it will help to improve the performance of your vehicle. I have a 2012 hilux sr, I wanted to get a 2inch lift with 32 inch tyres. Get special deals and offers on cheap tyres and fitment Australia wide. Factory standard tires on the MR Triton is between a 245/70R16 or 245/65R17 or 265/60/18 which all roughly equate to . When your tyre tread wears down and becomes flush with these indicators, your tyre has reached the limit of its safety. Any modification which directly contributes to an accident is extremely likely to result in a reduction or declining of your claim. With that being said, Tyrepower recommend you should consider changing tyres at around 3mm of tread, rather than waiting for the minimum allowable depth. Disclaimer:Tyre interchangeability is not always possible, so be sure to There are heaps of calculators, google tyre size calculator but the best info you can get is from your local RTA authority websites. The nominal tyre size can be quite different to the measured tyre size. Please choose a category from the left menu. In reality then, you are limited to: 1 inch lift and 2 inch bigger diameter tyres (together) 2 inch lift and the same size tyres. This post is referring to WA though. They are placed by manufacturers to help ensure your safety on the road. Lift Kits. Defective brakes. Do you know of any engineers in SA that could sign off a 4 wheel drive? Dec 16, 2016 #1 I found this from Mr 4x4 in my inbox this morning. If the tyres you are running are bigger than 50mm than the number stated, you have a problem. Tyre tread is the rubber found on the circumference of your tyre. for the selected tire size. . Sponsorship welcome so long as independence is . Does this law apply in vic as i see lots of 4wds over the size limit for lifts and tyres. Example: The height of this tyre is 65% of . 3) Radial construction. Now, I understand this post may get your blood boiling a bit, and I totally understand. If youre intending to modify your car so it rides low, its recommended you ensure it still meets legal requirements. Tire diameter measurements vary for each pattern or brand. When it comes to these results, it is recommended that you only use options within 1.5% and -2%. Then as a bonus it shows examples of your speedometer reading with the first tyre, and the actual speed you"re traveling if you were to install the second tyre. Tires calculator. I dunno why theyd issue these on something with so much 44 going on. However there are maximum limits that an inspection authority can certify. Keep reading to learn more about Australian tyre safety standards, including how to measure your tyre tread depth. But the placard on the door frame states Recommended tyre size 225/60/R18 100H (no mention of other sizes). It may not display this or other websites correctly. Tyre Disposal Just type in a metric or standard size tyre and click calculate. If it is over the manufacturers capacity, your vehicle is not legal. wheel diameter, width and offset, Ive written a very, very simple guide that explains it all: Towing capacity; a simple guide to keep you legal. Our tool gives this in percentages: a positive number is larger/wider, while a minus number represents a negative change. 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. The condition of your tyres is imperative for the overall performance and safety of your vehicle. At 54.5mm bigger in diameter than the stock tyres they . Where you frequently drive P275 / 35 ZR20. 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. This is an increase of 25mm over the previous Queensland rule that allowed a total of only 50mm (suspension) lift on ESC-equipped 4WD vehicles. The calculator lists optional/alternate tyre sizes, based on the entered OE tyre size, where the overall tyre diameter For starters, lets consider what is legal, and then you will know where you stand right now. 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 Reply Australia; RG.I [2012 . Tyres must also meet several test standards, including resistance to bead unseating and tyre strength, as well tyre endurance and high-speed performance. Getting a yellow sticker off your vehicle can be a pain, because even if the Police only pick one or two items that need attention, in order to pass the vehicle examination everything is scrutinized. Enhance grip and traction for safe braking and confident driving. It calculates the tyre dimensions for plus sizing. At the end of the day the driver makes most of the difference. If caught driving an illegal tyre, you will receive a fine and demerit PER TYRE below the legal limit- which varies per state/territory. do it properly and get it engineered stop bring the heat on everyone that does it correctly I have a jeep wrangler thats lifted 3 inches and with the correct guards all engineered didnt cost much engineering was only 600 through double black off road melb, Good to hear its all done properly mate. The overall diameter of 8.25-16 is 32.5, which is only 1.5 larger than the factory tyre. Taking into consideration looks and performance (reduced power, speedo, fuel economy) which size would you recommend? When using a tyre size comparison tool, it's important to know the difference in the outer diameter. VFX>UvpnsX&F{Mtuk-9hDD5EWsL4SjShxEI`%1*pZo&Wp+="YPh*FHc86t >0>]O#.e6+ 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. Im in WA and have a Suzuki Grand Vitara Prestige. If there are bulges and cuts, have the tyre examined, as the damage may be more serious than it appears. Ford Ranger Raptor ready to rip in for NSW police! specific new wheel diameter you've entered, aren't all suitable for your car. Surely the pits would just approve it all? Great to hear your engineering was so cheap. When going to a larger tyre size or dropping down to a lower tyre size on a set of alloy wheels it is important to make sure your vehicles rolling circumference remains the same or as close to the original rolling circumference as is possible. But do your own checks first because there is a 24 xtrail version. What Is A Bald Tyre and How Do I Spot One? 15.2mm do exceed the legal range(15mm), but because it is used tires, the tyres tread has been worn out more than 1mm when I put it on my rim. 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. Our specialised tyre experts are here for all of your tyre puncture needs. I dont see it changing any time soon! Wider tyre may require wider rim; road regulations may say permitted rim width is +/- 25mm from . consult your car manufacturer's manual before changing your tyres. Anything below 1.6mm is considered illegal in Australia. Hi All, 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? So, be careful. If you have an accident with an illegal 4WD, what happens? you install the larger wheels on a car. The article can be found here: http://www.rms.nsw.gov.au/registration/downloads/vsi/vsi6.pdf. Its pretty common to see big 4WDs driven daily on the road. Assuming that this is OE wheel/tire and there are no any problems with clearance on both sides. The vehicle's steering or suspension geometry may need to be . 1 inch lift and 2 inch bigger diameter tyres (together). Any more than this and you face the risk of brake failure. For example, for cars manufactured after 1973 and weighing more than 1201kg, the maximum increase is 51mm. 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. Tempe Tyres provide Tyre Disposal and Recycling services. MA is classed as a passenger car and can only have 15mm Total diameter Tyre increase, 7.5mm Tyre lift! No, I would say you cannot. Ok now add the revenue earners into the fray and you are behind the black ball, without any sense of engineering principals of strength and capability they are totally reliant on the lowest common denominator, the specs. So what happens when your tread starts to wear down? However, since your tyre is always in constant friction with the road, the tread will eventually wear down. By fitting larger tyres, your braking capacity is reduced. If your tyres are about to hit the legal limit, consider replacing them with a new set from Tyroola. 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. 215 / 60 R16. Its only the inch below the diff that raises the vehicle. Suspension and ride height Gazettal November 2016 2 (35 pages) . Youll have to ring the department of transport over there and ask. To calculate a metric tyre to height in inches: (#1 x #2 / 2540 x 2) + (#3) Example: 285/75R16 (285 X 75 / 2540 x 2) + 16 = 32.8 inches tall. When it comes to these results, it is recommended that you only use options within 1.5% and -2%. The wheel width has to be suitable NEW feature: Or, You can display adequate tyres for all three Plus Sizing methods: Use the tyre calculator to populate a list of alternate tyre sizes. Your tyres are the only part of your car that touches the road. Your personal driving style Im going to assume you dont have a 4WD? (OE TD - OE WD or 2 x OE sidewall height). Call our friendly customer service team. The overall diameter of the wheel and tyre combination cant be more or less than 15mm larger or smaller than specified on the manufacturers tyre placard. Email Us. 26-Nov-2018. For finding the appropriate wheel for the tire size you may use our Details. But, the tires are the most important component by far. A very useful tyre calculator when searching for tyres that are a different size then stock. Thanks. Its a total joke, and is causing a lot of dramas. . OR. Vehicle Standard (Australian Design Rule 95/00 -Installation of Tyres) 2018. Interest free. RD = 258 + 406.4. Low profile tyres have smaller aspect ratios. Every tire size has the measuring rim and the approved rim width range. You will find that theres no benefit going too wide though, and it will increase the chance of it scrubbing. As the tread depth gets shallower, going down from 8mm to 5mm to 3mm and so on, your tyre will lose its ability to grip and stay on the road. Under South Australian laws, wheel spacers are not permitted between the hub and wheel unless originally fitted by the manufacturer. Ride Height and Gearing to Remains the Same. Example not requiring certification: Replacing 215/65R17 (712 mm overall diameter) tyres with 235/65R17 (738 mm overall diameter) tyres, an increase in overall diameter of 26 mm, or 4%. You are also not allowed to fit tyres that are more than 50mm bigger than the factory tyre diameter. 1= 'c A race 225 width tire on a 6" wheel will perform better than a street 225 width tire on 7" or 8" or 9" wheel, or a street 245 width tire for that matter (if the car has enough horsepower). Find the sticker (usually on your drivers door framework) and see what it says. and Terms of Service apply. If you are towing its even easier to be illegal. Our tire size calculator will help you estimate the difference of external dimensions of the wheels, height clearance, revolutions per mile and other characteristics, when installing tires of other sizes on your vehicle. 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. I know, fake 44, but Im on a budget! 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. There is a government website that most workshops have access to, which gives you all the detail you want about roof height. https://bigtyre.com.au/store/P2592/825r16-haulmax-att304-set-14-ply-tube-tyre Ok so for the practicalities, if it rides like a boat then it is illegal, if in the braking arena you bend the pedal, foot well or your leg or presents anxioty than its possible illegal or brakes are not up to spec. When changing your tyre size, stay within 3% of your original tyre's diameter and height. Where are you located? Our tyre size comparison calculator takes the measurements of two tyres and compares the overall diameter, tread width, sidewall, and difference percentage (%). . What are the shipping charges to my area? The biggest tire you can fit on a MR Triton with stock suspension and stock rims are 235/85/16. With Tyrepower Legal Disclaimer Tire Pressure Calculator Limitations. 2) Percentage height of the sidewall in relation to the width. dimension, the wheel diameter, but you also need to know the wheel width. There are a lot of heavy duty springs that will lift the vehicle around 30mm. When upsizing the wheels and tyres, the overall diameter must be no more than 15mm larger or 26mm smaller than the tyre size designated by the manufacturer for that particular model. / R. select new wheel diameter size. Legally in Australia, tyres must have a minimum tread depth of 1.6mm. NOTICE: Tire dimensions presented in the resulting table, as possible new tire dimensions for the In WA, you can only lift the roof of your vehicle 50mm total, in combination of suspension lift, body lift and tyres. Developed in association with the NSW Vehicle Standards Working Group . Again, the purpose of these calculators and charts isn't to give the final verdict what is the best for I am unsure if there is much of a difference or not between the sizes and would like the look of the bigger tyre but dont want to significantly impede performance of the car. Simply pay in instalments. MC is 44 for off road use. Its hard to get this sort of information from insurance companies too, but perhaps it would be worth a go. The Police have a responsibility of pulling vehicles over that they deem to be un-roadworthy. However, theres always the slim chance that it doesnt go through and you could be in for a world of pain. 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. Designed & Developed by Pat Callinan Media. If your tyres are worn to the tread wear indicators (TWI) - 1.6mm or below - they must be replaced. An interesting write up. It is not a 100% guarantee of correct fitment. should be the OE tyre size) diameter. At the RTA (NSW) they said a 750R16 is the same diameter as a 235/85R16. For a better experience, please enable JavaScript in your browser before proceeding. Id also probably avoid going for steel wheels unless you want to increase your fuel consumption. So its a fake 44! While Changing your Wheel and Tyre Size, Focus on Overall Diameter to ensure. 2 inch lift and the same size tyres. We'll reach out to you as soon as we can. This is not the only legal tyre size. (4th March 2011, 14:41 #4: GTO. =Dbz1a|m QB!A>W5_4Q. It sounds like you are legal, despite the police not being on the same page. If I do not have engineering approval, will the police give me a yellow sticker? 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? maybe lol - need a Gingerbeers certificate if tyres are over 7%. 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. 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. Interest free. 4WD owners across Australia use a variety of different 4WD insurance companies to make sure their pride and joy is covered should the unthinkable happen to it. 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? Heres a guideline to whats legal in the major states of Australia. 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. 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. inn of the mountain gods gift shop / circle k workday login / legal tyre size calculator nsw. on the site(a tire service). width affects the tyre choice also, besides its diameter. legal tyre size calculator nsw. 14 inches - 10 tyres. Coil spacers are not ideal, but they do work. Next thing you should do is to find the right wheel for the chosen tire size. Learn more Nitrogen Inflation Ive just bought a set of used tires(205/60/16). Tire Size Comparison. Remove any objects lodged in the tread and check for gouges or punctures. I dont mate, but Im told the guys at Regency should be able to give you a list. I have Fitted king lifting springs and raised 30mmAnd now looking at Tyre options. Table columns headings: Column "Diff" may have percentages in the range from -3% to +4% (+5% for Winter tyres), which are allowed. A long-lasting summer tyre designed for vans and other people movers. I have a BT50 and am wanting to increase my tyre size (265/65/17 0r 776.3mm) whilst staying within the 50mm limit. The entire point of having vehicle standards is to ensure that people drive safe vehicles on the road. Though your tyres will really wear out over time, there are some factors that can accelerate the process. original equipment(OE) tyre, the tire and wheel has to be adequate for your car. Will They Fit - The No.1 Online Alloy Wheel & Tyre Fitment Calculator. The sidewall height or "aspect ratio" of a 285/75/R16 tyre is 75% of 285mm. 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. Tires are manufactured with the tire size printed on the sidewall. When changing tire sizes, we recommend staying within 3% of the diameter/height of the original tire. Get your wheels professionally aligned (every six months). I found this from Mr 4x4 in my inbox this morning. call us on 1300 367 897 or search by vehicle registration below. That's ok but it's not enough for the proper tire to rim fitment (read this). To be considered roadworthy your tyres must be free from cuts, cracks . Plus One, Two and Three; at the same time, by clicking on the "Show Plus One, Two 'n Three Tyre Sizes" - the blue button. Its value Use Tyroola's tyre calculator to find substitute tyre sizes for your vehicle if you're looking for a change. The maximum allowed increase in track over the manufacturers specifications is one inch, or 25mm. https://mr4x4.com.au/4x4-suspension-modification-laws-suspension-manual-published/?utm_source=ActiveCampaign&utm_medium=email&utm_content=4X4+suspension+Laws+published+-+read+them+here&utm_campaign=PC+Newsletter+154+(Copy), http://www.rms.nsw.gov.au/documentscations-manual-suspension-and-ride-height.pdf. it really depends on the officer that pulls you over ,you carnt get 22 inch tyres with the legal load rating to suit the ve,the 22 inch wheel size is ok ,but put an hsv tyre plackard on just incase your . This measurement is taken from the wheel to the outer circumference of the tyre and is a percentage of your tyre's width (55% of 185mm). Many also refer to the National Code of Practice and VSB 14, but there are also some state regulations that can differ. On top of this, if you do any towing, there are 7 weights that you need to comply with, which confuses everyone. Hi Aaron, Transport for NSW VSI.09, Rev. So for someone like me even 31 (stock) tires are over the limit because I have flat fender flares installed. Check out our guide for answers to all your questions.