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Flem Offline
#1 Posted : Sunday, 10 January 2021 8:59:37 PM(UTC)
Flem

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Can someone here help me or have any ideas what offset size wheels can I fit under a 2020 Izuzu 4x4.without fouling the suspension and bodywork. My 30 year old son got a defect ticket for the wheels he had on his 4x4.Just hanging out a bit much said the officer but, Like many young blokes into 4x4 would like the biggest, chunkiest and the more they stick out past the guard the better. Oh I thought just offset them in a bit then. Wondering what can be safely done with this but still using much the same size tyres. It looks to be about 25 mm so. Any ideas.
TIA
Flem.
Smitty2 Offline
#2 Posted : Sunday, 10 January 2021 9:06:00 PM(UTC)
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Originally Posted by: Flem Go to Quoted Post
Can someone here help me or have any ideas what offset size wheels can I fit under a 2020 Izuzu 4x4.without fouling the suspension and bodywork. My 30 year old son got a defect ticket for the wheels he had on his 4x4.Just hanging out a bit much said the officer but, Like many young blokes into 4x4 would like the biggest, chunkiest and the more they stick out past the guard the better. Oh I thought just offset them in a bit then. Wondering what can be safely done with this but still using much the same size tyres. It looks to be about 25 mm so. Any ideas.
TIA
Flem.


set of stick on rubber flares might be easier

(my neighbour did that after a defect notice on his Hilux ... 10"rims needed a big set!)

Edited by user Sunday, 10 January 2021 9:07:13 PM(UTC)  | Reason: Not specified

Club circuit racing...the best fun you can have with your pants on
HK1837 Offline
#3 Posted : Sunday, 10 January 2021 9:31:29 PM(UTC)
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In most States you have to stay within 50mm of the original track on 4x4 utes. It is 25mm on passenger variants like Everest and MUX. So that means you have to stay within 25mm of the original rim offset on a ute and 12.5mm on the passenger variants. So you need to find what offset the original rims were. What you normally find though is for example my 2011 Hilux. It’s originals (biggest rims being 17x7.5”) had a 30P offset. I could go to 5P legally, however in reality it is not worth it, tyres scrub on full lock and it affects alignment.
The other problem occurs with taller tyres. In theory you can legally increase diameter by 50mm in most States. But in reality it badly affects the braking ability of the car. It is force at a distance, and thus you need larger diameter rotors to overcome the increased distance the tread is from the axle centre. Again using the Hilux as an example, in 2011 the SR5 had 255/70/15 tyres with 297mm rotors. They changed the tyres to 265/65/17 for 2012 update which are a 38mm diameter increase. Rotors were upgraded to 319mm diameter to compensate. On the higher performance 2008-ish TRD (also with 275/65/17) the rotors were 338mm. When I changed my 2011’s tyres from 255/70/15 to 275/65/17 I fried my rotors pretty quickly, so I upgraded it to 338mm rotors. So moral is don’t put much taller tyres on ever, without increasing the brake rotor diameter, the car will be way under braked especially on an auto.
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If we all had the same (good) taste, who would buy all the Fords?
Flem Offline
#4 Posted : Monday, 11 January 2021 9:33:33 PM(UTC)
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I’d say well son it’s get used to defect tickets or standard wheels.
Flem
HK1837 Offline
#5 Posted : Tuesday, 12 January 2021 5:18:15 AM(UTC)
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The big problem is if you go outside the limits of what is legal you may find yourself without insurance in the case of an accident. The insurance company may have a valid argument that the vehicle was unroadworthy and that contributed to the accident, say for instance if a front wheel bearing failed due to the excess load caused by illegal wheel offset, or the brakes were affected by tyres that were too big. Or the vehicle was overloaded as what it was towing was too heavy (which is common on most popular tow vehicles as the manufacturers are almost irresponsibly misleading about safe towing capacity). In a little fender bender they probably wouldn’t bother but if it was a really expensive crash or there were serious injuries or fatalities involved where the crash gets investigated by Police then they may well decide not to pay out.
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If we all had the same (good) taste, who would buy all the Fords?
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