I thought 265/75/16 was more common than 70/16? Divide this by 25.4 to get inch equivalent. If you are towing its even easier to be illegal. There is a government website that most workshops have access to, which gives you all the detail you want about roof height. So youre entitled to work your figures based on the taller tyres even if they werent original to your particular car. MA is classed as a passenger car and can only have 15mm Total diameter Tyre increase, 7.5mm Tyre lift! Click here. When changing your tyre size, stay within 3% of your original tyre's diameter and height. Our tool gives this in percentages: a positive number is larger/wider, while a minus number represents a negative change. It will take longer for your brakes to stop the car on wet surfaces. 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? difference between an optional tyre(OT) and the original equipment(OE) tyre fits within the range of -3% to +4% Great to hear your engineering was so cheap. It sounds like you are legal, despite the police not being on the same page. That is of course, unless there are other models in your range with only cosmetic changes that run bigger tyres. If you are considering replacing your tires with a different sized tire, you can conduct a size comparison, which can help you determine what alternate tire sizes will work on your vehicle. For more tyreand wheel information check this transport.qld. The tire will stick out 15 mm farther. Sponsorship welcome so long as independence is . Can anyone with experience or knowledge about a 99 Hilux tell the max size tyres i can go without any dramas? 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 A long-lasting summer tyre designed for vans and other people movers. Taking into consideration looks and performance (reduced power, speedo, fuel economy) which size would you recommend? Its hard to get this sort of information from insurance companies too, but perhaps it would be worth a go. To be considered roadworthy your tyres must be free from cuts, cracks . No, I would say you cannot. Legal Disclaimer Tire Pressure Calculator Limitations. Australian law states that if your tread falls below 1.5mm or your treadwear indicators make contact with the road surface, your tyre is classed as unroadworthy. For a lot of four wheel drives, 31 inch are standard tyres, so 33 inch tyres are the biggest you can legally fit (or 285s from 265s). An assembly consisted of Cheers. Shop for Tires. Dec 16, 2016 #1 I found this from Mr 4x4 in my inbox this morning. Use our tyre size calculator to calculate the diameter, width, sidewall, circumference, and revolutions per mile of any tyre. Vehicle Standards Information . the tire and wheel has to be adequate for your car. Every tyre must meet the requirements of ADR 23 before it is fitted to a new or used car. When using a tyre size comparison tool, it's important to know the difference in the outer diameter. 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. Look at your existing tyres and enter their size into the calculator. for the Aus Navara is a 255/70 . P275 / 35 ZR20. Select your tyre size and find the right car tyre for you. DAP Pricing Unless otherwise stated, all prices are shown as Manufacturer's Recommended List Price (MRLP) inclusive of GST, exclusive of options and on road costs. That said, I think the laws surrounding modifications of 4WDs need to be seriously looked at, and Im sure a number of you would agree. The formulas will also show you the matching ExplorOz Wheel covers that match your tyres. Column "Diff" may have percentages in the range from -3% to +4%(+5% for Winter tyres), which are allowed. I cant speak for Tas mate. 3) Radial construction. 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). Your feedback, suggestions and ideas in order to help us serve you better. please pay special attention to the following: wheel size, i.e. Tire Size Comparison. If one of the tyre sizes marked on the placard (eg 215/65R17) matches the marking on the tyre sidewalls, certification is not required. Tyre Condition. Interest free. Do the same for another set you want to compare them with. (4th March 2011, 14:41 #4: GTO. There are a lot of heavy duty springs that will lift the vehicle around 30mm. 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. For a better experience, please enable JavaScript in your browser before proceeding. 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. Notice: When practicing Plus Sizing methods, changing tyres and wheels, experience with the Tyre Size Calculator, Suck it guys. I want to increase to either a 265/75/16 (803.9mm) or a bigger 275/70/17 (816.8mm). Fact is though, lots of 4WDs across Australia arent legal. between new tire and old tire. Tire Size Calculator. Its a total joke, and is causing a lot of dramas. The tire size comparison calculator takes the measurements of two tyres and compares the diameter, width, sidewall, circumference, and revolutions per mile. Use the tyre calculator to populate a list of alternate tyre sizes. Compare tyre specs (tyre diameter, sidewall width and height and tread width) side by side. You can measure this, but yes, 50mm maximum in diameter increase, and width you can go as wide as you want, as long as its covered by flares. 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 is better to play on the safe side and keep your vehicle looking good, to avoid the chance of getting pulled over and given a yellow sticker! Ford Ranger Raptor ready to rip in for NSW police! A lot of people know their 4WDs are illegal, and dont seem to care. Upsizing or fitting taller / larger tyres will reflect a slower speedometer reading than your actual speed. Anything below 1.6mm is considered illegal in Australia. The vehicle's steering or suspension geometry may need to be . 7. So, be careful. Discover our interest free finance options. Good to know. 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. NSW releases simpler modification document. Type your rego. I dont intend to do serious off-roading in it, but I might take it on the beach, and would much prefer standard 225/70/R16s, with the higher sidewall, that come stock on the lower-spec Grand Vitaras. Ride Height and Gearing to Remains the Same. 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. 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. Ensure tyres have adequate tread depth. I have a BT50 and am wanting to increase my tyre size (265/65/17 0r 776.3mm) whilst staying within the 50mm limit. New Size. You see, you are required to tell your insurance company about any modifications done to the vehicle. width affects the tyre choice also, besides its diameter. 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. Plus Sizing your tyres can be also referred to as stepping up. Im perplexed by all detail or lack of detail, I find that there is no information on roof height and certainly nothing on hub to guard measurement that authorities use as the basis of prosecution. The tyre size calculator shows the effect of changing tyres. 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? However, since your tyre is always in constant friction with the road, the tread will eventually wear down. 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. The third number generally preceded by an "R" is the wheel diameter. Have a chat to ARB they might have a spring setup that suits. In other words, it says what is acceptable deviation of the It is similar to 315/75/16. 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. Find the right tyre size for your vehicle or learn more about tyres, Tyroola offers free shipping and delivery to selected metro areas, At Tyroola you can fit out your whole car under $160. The factory size of toyota 80 is 7.5-16 or 275/70/16. 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. We offer Nitrogen inflation for all passenger cars, light trucks and SUV/4WD's. represents the ratio of the difference between OT and OE tyre diameter and the difference between 7.00R16. TAKE NOTE: Tyre manufacturers recommend that you don't allow your tyre tread depth to go below 3 mm for added safety. Does this law apply in vic as i see lots of 4wds over the size limit for lifts and tyres. When it comes to these results, it is recommended that you only use options within 1.5% and -2%. . With that being said, Tyrepower recommend you should consider changing tyres at around 3mm of tread, rather than waiting for the minimum allowable depth. Discover alternate tyres based on your rim size. Making it as simple as possible to find the tyre that is just right for you. Need tyres? An Xtrail will go to a lot of places. Ive written a very, very simple guide that explains it all: Towing capacity; a simple guide to keep you legal. By fitting a lift kit, your center of gravity increases. Next thing you should do is to find the right wheel for the chosen tire size. tire size or rims Choose a tab below to get fitment data for your vehicle or to find vehicles matching your criteria. Would insurance still 100% no questions asked cover my nt regoed and compliant 4wd if I were in another state where VSB 14 has been adopted??? Id like to know that Im not sharing the road with people who are driving unsafe vehicles. Many also refer to the National Code of Practice and VSB 14, but there are also some state regulations that can differ. Expand. In order to get the list of optional(i.e., replacement) tyres, that are adequate for your new wheels, in the plus sizing calculator below, In fact, the actual diameter of the tyre is not larger than 15mm of the size of 225/40/18. (OE TD - OE WD or 2 x OE sidewall height). hU[o0+~41qB"H^ ZHPNe;5; Remove any objects lodged in the tread and check for gouges or punctures. and the legal obligations on vehicle owners, and every attempt has been made to ensure the . Tire Calculator; Articles; Tire Glossary; API Data & Services . Regularly get your tyres rotated to ensure even tread wear. . . In my case. 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? Cars manufactured on or after the first of July 1988 must also have a speedo that is accurate to plus or minus 10 percent for all speeds above 40km/h. Let me know what you reckon below! This 50mm is the total combination of body lifts, suspension lifts and bigger tyres. Dated 25 October 2018. 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. the 285/75R16 is a legal tyre . 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, Do electric vehicles really need specialty tyres? So, how does an illegal 4WD add risk to the driver? You can also run comparisons between different tyres and work out the differences in size and odometer corrections. See below for more information on what this refers to. Using our Tire Size Calculator, you can get exact measurements for your current tire size. 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. Surely the pits would just approve it all? I found this from Mr 4x4 in my inbox this morning. Will They Fit - The No.1 Online Alloy Wheel & Tyre Fitment Calculator. I will probably go 225/65 r17 as the 235 Tyre takes me 1mm over the max 75mm in Victoria. The vehicles steering or suspension geometry may need to be checked. My request at DOTWA was rejected on this basis. 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. Find the sticker (usually on your drivers door framework) and see what it says. The nominal tyre size can be quite different to the measured tyre size. You already have one wheel 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? Please choose a category from the left menu. There are heaps of calculators, google tyre size calculator but the best info you can get is from your local RTA authority websites. . The biggest legal tyre size is literally dependent on the vehicle you drive. This formula is used by the leading tyre manufacturers. At the RTA (NSW) they said a 750R16 is the same diameter as a 235/85R16. They need to make things standardized across the country, and get the police on the same page. 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. If one of the tyre sizes marked on the placard (eg 215/65R17) matches the marking on the tyre sidewalls, certification is not . To be blunt, in the event of an accident, your insurance company can literally tear your policy up and walk away without paying a cent. This is perfect for us, as a 265/75/16 (one of the most popular tyre sizes around) is 803.9mm. It also specifies the distance between the bottom of the guard and the centre of the wheel. Are 1inch coil spacers any good. Car manufacturers are lowering the category for the mainstream and to cover 24 versions. If you look at the modification rules on vicroads it talks about specified by the vehicle manufacturer for that model or vehicle series. Advertise on TyreSizeCalculator.com. 7.00-16. Online Tyre Size Calculator. Just type in the metric fields and click convert to inches. If your tyres are worn to the tread wear indicators (TWI) - 1.6mm or below - they must be replaced. If you want this, you need engineering approval. This tire calculator is for information . When it comes to these results, it is recommended that you only use options within 1.5% and -2%. This is the maximum legal lift kit height in WA as long as you run the factory size tyre. Modify or construct a vehicle. 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). just curious The sidewall height or "aspect ratio" of a 285/75/R16 tyre is 75% of 285mm. Please respect the ETRTO guidelines limiting maximum tire pressure to 72.5 psi / 5 bar for Tubeless Straight Sidewall (TSS) or 'Hookless' type rims. 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. Cheap tyres. However surely then if you have 1 lift and 2 bigger diameter tyres your car is now 3 off the ground and illegal? Black Ice 2007 Nissan Navara ST-X 4x2 V6 6 Speed . The second number on a metric tyre is to calculate the side wall measurement. consult your car manufacturer's manual before changing your tyres. RD = 664.4. Any thoughts? Any more than this and you face the risk of brake failure. The calculator and the information provided is free to you but cost me to produce and maintain, so please consider supporting me on Patreon and YouTube. Example: 285/75R16 (285 X 75 / 2540 x 2) + 16 = 32.8 inches tall. Let us know about your Cop threatened me with sending the 80 for a blue slip inspection. Cheers, Not many companies will advertise 1 inch, and its all dependent on how much your springs have sagged. There are plenty of big, engineered 4WDs around so its not always unsafe. Perhaps you should re-read, before you leave comments that make you look rather silly. This is a tyre size chart i saw at a 4wd shop workshop the other day. great white shark population graph; clarence gilyard net worth 2020 (+5% for Winter tires) of the difference between the OE overall tyre diameter and the OE wheel diameter wheel diameter, width and offset, OT tyre diameter from the OE tyre diameter. This size fits without any rubbing problems, and no trimming or additional modifications are required to make them function properly. 198.75mm x 2 = 397.50mm. Acceptable for most cars. If you have an accident with illegal mods, you could be in trouble. you needs, but only to give you a suggestion in your quest for the final answer. Interest free. I think the tyre size thingy applies to the biggest tyres fitted to the model. For more tyreand wheel information check this RTA PDF. Heres the list of engineers, or try On Track Fabrication: http://www.transport.wa.gov.au/mediaFiles/licensing/LBU_VS_IB_102.pdf, Getting sick of seeing 44 lifted and tyres sticking out past guards . Profile / Aspect Ratio (B) - The profile is the depth of the tyre sidewall. In the last two years more than 160,000 calculations have been made by over 33,000 people! They have however started measuring the hight of the lift from the center of the rim to the underside of the wheel arch. I have a 2012 hilux sr, I wanted to get a 2inch lift with 32 inch tyres. This calculator allows you to tell the difference between the tires in inches, centimeters, and percentages. 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. Get your wheels professionally aligned (every six months). The maximum tyre width allowed is 1.3 times the width of the largest optional tyre offered by the manufacturer. 3. I dunno why theyd issue these on something with so much 44 going on. The condition of your tyres is imperative for the overall performance and safety of your vehicle. Coil spacers are not ideal, but they do work. The tyre plus sizing or the tyre upsizing is the procedure We have tyres to fit all your driving needs and all budgets. How to choose the right tyres for my car? Fenders. 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. Larger wheels and tyres may look sexy, but make sure they adhere to the law and keep your insurance company happy. 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 . Motor vehicles in Australia are subject to many complex but necessary safety standards, and tyres are no exception. 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. 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. 5. Cheers mate. 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. 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%. 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. of replacing a wheel with a larger one and mounting a suitable tyre on that wheel, the tyre with a Note: Tyres showing wear on one side, or showing feathered edges to the tread pattern, are often indicative of mechanical maladjustment. Here's a guideline to what's legal in the major states of Australia. In Western Australia rims cant exceed the manufacturers specifications by more than 25mm, or one inch. Our tyre calculator makes this happen for you. 14 inches - 10 tyres. If you want to read through the document, you can find it here. 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. Anything below is considered unroadworthy. Its something that can change your life very badly for a long, long time, and if you accept this risk then I honestly think you are foolish. Tire diameter measurements vary for each pattern or brand. Simply pay in instalments. High-performance 4x4 ute a candidate for on- and off-road police duty. As one of Australias leading multibranded fuel cards, the Tyrepower Fleet Card gives you the power of so much more. 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.