How to calculate tyre size?
Fully Trained Tyre Technicians - 12 Months Nationwide Warranty - Quality Tyres
In most cases, you can find out the exact size of your tyre from reading the numbers in the sidewall. However, knowing what these numbers mean will help you to calculate tyre size and that can save you time in searching for a tyre that is the same size as those currently on your vehicle.
If you look on the side of the tyre you can find numbers in this format xxx/xx Rxx, as an example it may read 245/45 R18. These numbers relate to individual aspects of your tyre as per below:
- 245 - is the normal section width, measured in millimetres.
- 45 - is the aspect ratio or a comparison of the tyre height, measured as a percentage
- R - indicates a radial construction
- 18 - is the diameter of the wheel rim, measured in inches
Firestone tyres (and all other brands) have a limited life, and this is not always measured in how much tread they have remaining. After ten years from the manufacture date, the materials used to make standard road tyres begin to degrade and are no longer considered to be roadworthy.
For a tyre that is in regular road use, you can expect to get anywhere from 30,000km to 50,000km out of a set. There are many reasons that your tyres may not last as long as they should and of these, incorrect tyre pressure and poor wheel alignment are the most common.
For the best results, you should have a wheel alignment every 12 months. This will keep your wheel aligned and the tyres wearing properly, and that will extend their life expectancy. You can check for poorly aligned wheels by examining the tread pattern and if you see that your tyres are wearing mainly on the outside of the tread pattern, then that can be a sign of poor wheel alignment.
Why book a Lube Mobile mobile tyre service?
Discover why more Aussies are choosing Lube Mobile to look after their tyres.
Convenient onsite service
Qualified mechanics that do the work at your location.
Same or next day appointments
More vans on the road means we can get to your car faster!
The highest quality parts and brands
We only use the best quality parts, oils and equipment on your vehicle.
12 month / 20,000 km warranty
We back all our work with a nationwide parts and labour warranty.
How much does a Lube Mobile tyre service cost?
We always strive to give you a fixed price up front and let you be in control of costs.
Once we've arrived at your location our tyre experts will thoroughly inspect your tyres including the wheel hub, tyre sidewall and tread pattern. We will then provide you with an itemised quote of the work required to fix or replace your tyres, and will not proceed without your approval. Payment needs to be made at the completion of any tyre service unless new tyres need to be ordered, in which case we will require a deposit on the day of our first visit.
All tyre service and repair costs will differ based on the make and model of your car and the tyre brand preferred if different from your existing tyres. again, we will always show you an itemised quote of all work required before commencing the work at your location. This keeps you in control of price, and helps you decide if repairing or replacing any related part is the most cost-effective solution for the long-term life of your vehicle.
Calculate Tyre Size
When you're looking for new tyres, the number of different brands and sizes can be a little overwhelming. This is where knowing how to calculate tyre size and what differences it can make will help you out. In looking at a tyre website you’ll see a huge array of brands, prices, and sizes. But what does all this mean and is it important to know?
At Lube Mobile, we know that most people are more interested in having a fast service to replace tyres when they need them. But other people enjoy knowing exactly what they’re buying and if getting different tyres to those currently on the vehicle is going to give them increased performance. Before choosing to install a different size of tyre on your rims, you need to know what changes it will make to how your car operates and then decide if it is worthwhile.
If you calculate tyre size and decide to get larger tyres (rarely will people get a smaller tyre) you need to know how it will affect the readings on your speedometer and your ride comfort. In most cases, a larger tyre than what was on the car previously will make the speedometer reading incorrect. This is because it reads speed based on internal workings from the driveshaft and not the actual tyres.
Essentially no speedometer is a hundred per cent accurate in its readings, and most are designed to fall within a certain error range of around 1-5 per cent. This can mean that at 100 km/h the car can actually be travelling at either 95 km/h, or 105 km/h. If you install different tyres on your vehicle it will change this and your speedometer may need to be recalibrated to ensure your readings are accurate. This is simply because larger tyres will cover more ground in a single revolution.
If you calculate the tyre size you can determine the exact amount of change in your speedometer, and adjust your driving accordingly, but this math can get complicated. An easy way to see how much larger tyres have affected your speed is to use the GPS on your phone and download a GPS speed tracker app. Place your phone in a cradle near the dash and find a smooth and straight road (the more unused the better) and run through a few different speeds. Measure the speed reading in your speedometer against the app and note the difference. You can repeat this for the different posted speed signs (40, 50, 60, etc.). If you’re happy doing some math you can do it once for 100 km/h and then use the percentage difference to work out the reading for the others. For example, if you drive at 100 km/h but the app is showing 108 km/h you know there is about an 8% difference, so to drive at 60 km/h your speedometer needs to read 55 km/h (60 / 100 x 8 = 4.8).
At Lube Mobile, we’re your mobile mechanic specialist and we can install tyres that are suitable for your car. If you’re interested in having a smoother ride than you’ll often get from having larger tyres we can supply those for you. We are operating all over Australia, and as we come to you, you can consider us as the tyres shops ‘near me’. With our vans working in large cities including Sydney, Melbourne, Brisbane, Adelaide, Perth, Canberra, and many other towns and small cities, we’ll always be there when you require a car service or car repairs. You can book in through our website, or by calling our customer service team on 1300 462 107. If you're not sure how to calculate tyre size we can help you find out that information.
How do I book a Lube Mobile tyre fitting or repair?
It's easy to book an experienced tyre technician that comes to you!
Tell us where you are
Type in your postcode and discover a qualified mobile mechanic near you now!
Tell us about your car
We are able to work on a wide range range of popular makes and models
Select a service
Even if you don't know what's wrong, we'll come to you, inspect your vehicle and supply a quote upfront.
Pick a time and place!
Tell us where your car is and a qualified Lube Mobile mechanic will be with you soon.
Frequently asked questions
What areas do you cover?
Lube Mobile is Australia’s largest network of nationwide mobile mechanics and has mobile vans operating all over Australia.
Our mobile mechanics operate 6 days a week across every major city and many other regional towns and areas across Australia including Sydney, Melbourne, Brisbane, Perth, Darwin, Canberra, Hobart and Adelaide.
Whenever you search for a mobile mechanic ‘near me’ or auto service or auto repair ‘near me’, you’ll find a Lube Mobile mobile mechanic van is never far away.
It's easy to use our online booking system or you can call one of our operators on 13 30 32 to arrange a time and place that suits you. Our mechanics are all fully qualified and experienced and are able to work on a wide range of popular makes and models.
Check out our full range of nationwide locations here.
How soon can a Lube Mobile mechanic get to me?
Because we are Australia’s largest network of mobile mechanics, we can usually arrange same or next business day bookings.
Our fully qualified fleet of mechanics are ready to perform a wide range of routine auto services or one-off repairs so you can stay on the road the convenient and cost-effective way.
Call 13 30 32 to arrange a time or book online via our easy to use online booking platform.
How much does it cost?
This always depends upon what you need, if replacement parts are required and the make and model of your vehicle.
We always strive to give you a fixed price up front via an itemised quote and we will never start working on your car before we get your approval. This lets you be in control of costs and help you decide whether repairing or replacing a part is the most cost-effective solution.
If you are unsure what is wrong with your car and just need a mobile mechanic to come out and fix it, we have a Repair Call Out fee which includes the first 15 minutes of labour. After this, we charge a competitive hourly rate in 15 minute increments.
Need a mobile mechanic?
Book a routine service or repair today and we’ll come to you at a time and place that suits your schedule! Because we are Australia's largest network of mobile mechanics, we can usually reach you by the same or next business day.
What is the warranty on your work?
Every Lube Mobile service and repair is fully guaranteed.
We believe in the expertise, professionalism and attention to detail of our mechanics, so we back all our work with a 12 month/ 20,000km nationwide warranty. Our warranty covers:
- All parts and fluids supplied
- All labour by Lube Mobile mechanics
- Your vehicle for a period of 12 months or 20,000km
Because we care about the convenience, quality and expertise of our service, we also offer the following guarantees in the event of a problem with any Lube Mobile service or repair:
- We will send another Lube Mobile mechanic out to you as soon as possible
- Our customer service team will follow up to ensure you get the service you deserve
Click for more details about our nationwide parts and labour warranty.
Why should I book Lube Mobile for car repair?
Convenience, Quality, Flexibility and Trust.
Lube Mobile is proud to be one of Australia's most trusted brands, with a 40-year+ track record of delivering quality mobile car maintenance and repair.
Here are 4 reasons to book Lube Mobile for your next service or repair:
Convenience
Getting your car serviced or repaired on your driveway at home - or at work - takes the hassle and unnecessary expense out of car maintenance. Forget about waiting for your car to get seen to in an overbooked garage, paying for a tow or arranging rental cars - we come to you!
Quality
We only use the highest quality parts and oils on your car, and all of our mechanics are fully trained and qualified to perform a wide range of maintenance and repairs on a wide range of makes and models. We also back our work with a 12-month/20,000km warranty on parts and labour.
Flexibility
Because we are Australia's largest network of mobile mechanics, we have more appointment times to suit your schedule. This means that depending on where you are in Australia, we can usually reach your by the same or next business day!
Trust
Even if you're not sure what kind of service or repair your car needs, a qualified Lube Mobile mechanic will diagnose your issue at the car's location, provide you with an itemised quote of the work and any parts required, then carry out the job in front of you. Got questions? Ask us. Our friendly mechanics are here to help and won't start the work until you approve it.
Need a mobile mechanic?
Book a mobile service or repair today. We come to you!