 | Home > General & Technical (L663) > BF Goodrich tyres mixing KM2 & KM3 on the same axle |
 
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| Chicken Drumstick Member Since: 17 Aug 2020 Location: Near MK Posts: 856  
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It isn't illegal, but generally not recommended.
As this is in the New Defender section, the cost/value of these vehicles. I'd have thought running matching tyres would be only a minor cost for such a vehicle. |
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19th Mar 2025 11:32pm |
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| jim4244 Member Since: 13 Apr 2014 Location: Bedfordshire Posts: 886  
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Its never good practice to mix tyre makes and models on the same axle as each tyre has its own individual properties and it may result in uneven grip and braking, which you don't want in an emergency situation. In heavy braking situations it can cause the vehicle you veer to one side due to different compounds used to construct the tyre and the tread pattern.
Not illegal though.. Jim |
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20th Mar 2025 3:31am |
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| Chicken Drumstick Member Since: 17 Aug 2020 Location: Near MK Posts: 856
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With ABS and DSC it is hugely unlikely to cause the vehicle to veer to one side. And even on older vehicles I suspect this is overhyped to the extent it can occur. Else it would be illegal. Remember an MoT test for even braking force. If mixed tyres really were an issue, it would have been addressed decades ago.
Think of it more akin to wearing odd shoes. There is a small chance it may cause you to trip. But the biggest thing is it looks odd. |
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20th Mar 2025 9:11am |
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| LR Nuts Member Since: 10 Aug 2022 Location: UK Posts: 1254 
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As stated ...... not recommended.
I only run with 4 identical wheels n tyres. The spare and a second spare are of the same as the vehicle . When I buy tyres, I always buy 6 tyres to replace the 6 wheels I have. |
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20th Mar 2025 9:53am |
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| custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20688
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In an ideal world matching 4 road wheel tyres and a spare, all of the same type.
Or at least matching on the same axle. You can bet if you don’t get a matching spare, you’ll need it and then that’s when younger problems with matching, plus availability is a problem. TheThunderRolls🇬🇧🇺🇸 ⛽️🛢️⚙️🧰💪 |
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20th Mar 2025 10:25am |
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| Moo Member Since: 01 Oct 2021 Location: UK Posts: 1468 
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Never understood the skipping on tyres. I change mine at 4mm and always buy as a set. My family is too precious to me for penny pinching.
As others have said, not illegal but why would you on a £70k plus car? Eiger Grey MY23 D250 SE with bits. Known as Noddy. |
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20th Mar 2025 2:22pm |
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| TaylorTD5 Member Since: 21 Oct 2023 Location: Winchester Posts: 9 
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Sorry I’ve placed this on the wrong forum
The car is a 25yr old Defender TD5 90 which is off road 50% of the time Thanks |
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21st Mar 2025 8:46am |
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