How to find equivalent offset to replace stock wheel?

[Leo22]

Normally size use term 'ET', how to know whether positive or negative offset?

Is stock wheel normally positive?

[Hamburger]

look from the inside of rim. There will be numbers stamped on it.

[Leo22]

look from the inside of rim. There will be numbers stamped on it.

Oh, ok. Thanks. Another noob question, if stock has positive offset, does it mean need to match with near positive?

Noticed most aftermarket has negative offset.

[Raychay]

 

Stock wheels tend to hidden under the wheel arches.

Most ppl choose negative offset to bring out the wheel to more flush with car body.

Too much negative offset and it will look like a 4X4.

[Hamburger]

Oh, ok. Thanks. Another noob question, if stock has positive offset, does it mean need to match with near positive?

Noticed most aftermarket has negative offset.

Bottom line. Stay as close to the original offset as possible.

 

Rim seller that tells you to flush with fenders should siam them far far.

 

It shows they know nuts about car set up and its suspension geometry.

[Leo22]

Bottom line. Stay as close to the original offset as possible.

 

Rim seller that tells you to flush with fenders should siam them far far.

 

It shows they know nuts about car set up and its suspension geometry.

The main problem is, sooo many nice nice wheel I checked out so far, all negative offset.

If stock is positive the really limited choice liao

[Sturtles]

The main problem is, sooo many nice nice wheel I checked out so far, all negative offset.

If stock is positive the really limited choice liao

 

 

Have not encountered any positive offset wheels in the market.

 

Even stock rims are negative offset.

 

What vehicle are are you driving?

 

Why are you changing? 

[thunderlui]

How far should the offset deviate from the stock rim ? 

[Roberttan]

 

Stock wheels tend to hidden under the wheel arches.

Most ppl choose negative offset to bring out the wheel to more flush with car body.

Too much negative offset and it will look like a 4X4.

just my knowledge, correct me if I am wrong 

above 3 offset are still Positive offset

a real Negative offset will be a Minus sign before the number (example ET -10 , -20),

Negative off set is usually for most 4x4 wheel

[Roberttan]

After market wheels usually make for Universal which help to bring the production cost lower .

Unless you buy a Replica / copied wheels they will usually follow exactly what Original Offset and Specifications'

Only Quality after market wheel will have proper formulated Offset and specification wheels for designated car.

to most of the Drivers like what they want but not Need

So long you are happy even it rubs any part of the car.

[Stratovarius]

How far should the offset deviate from the stock rim ? 

It depends on a few things like tyres width and if your ride is lowered.  

My experience on my last ride is ET is +50 on stock. Changed to +35 (15mm more outwards) no problem with stock tyres profile. Changed to wider width (+10mm) tyres still okay. Once changed to coilovers start to rub rear fenders. Finally, change rim to +45 with wider tyres on a lowered height and everything clear.

Overall, if you are on lowered ride, stick to stock rims ET. Stock tyres profile are abit hard to find aftermarket. Even got, also very limited choices. A primitive method is to use a ruler and measure the gap between your tyre and the innerwall of the fender.

[Rockerbun]

It depends on a few things like tyres width and if your ride is lowered.

My experience on my last ride is ET is +50 on stock. Changed to +35 (15mm more outwards) no problem with stock tyres profile. Changed to wider width (+10mm) tyres still okay. Once changed to coilovers start to rub rear fenders. Finally, change rim to +45 with wider tyres on a lowered height and everything clear.

Overall, if you are on lowered ride, stick to stock rims ET. Stock tyres profile are abit hard to find aftermarket. Even got, also very limited choices. A primitive method is to use a ruler and measure the gap between your tyre and the innerwall of the fender.

Can i ask you if inforged ifg24 will fit into elantra? Sorry i m noob on this offset thing

[Zippaboy]

General thumb of rule.

 

If same rims size, your offset should be as close to stock as possible.

 

As you upgrade to bigger wheels and wider tyres, your offset should be slighter lower (small ET value). This is to prevent the wheels from running the inner side when you do a full lock turn.

For example, you might upgrade from a 195R15 to a 225R17. Or a 215R17 to a 245R19 etc etc.

 

If your rims extend too much, you might need to roll your fenders to prevent rubbing.

 

Usually if you dont go ape with the rims offset and/or upgrade to 275-295mm wide tyres, you should be fine.

[Zippaboy]

Forgot to mention,

 

 

Take the new tyre width minus the old tyre width and divide by 2.

 

That is the number your should deduct fekm your stock offset.

 

 

New width : 225

Old width : 185

Difference : 40

 

Old offset : ET50

 

You new offset should be about ET30. (50 - [40/2])

[chubbs]

Hope this link will help you visualize what Offset, rim width etc better.

https://www.wheel-size.com/calc/

 

Offset is measured NOT from the centre of the rim but from the edge of the hub.

Fill in the figures and it will tell you if it is suitable.

 

 

[Stratovarius]

Can i ask you if inforged ifg24 will fit into elantra? Sorry i m noob on this offset thing

Coincidentally, i had this set of rims before. i remember it was 17 inch, et42. With 205 tires, it was rubbing the rear fender on my swift. Sold it to a bro who put onto his cerato with no problems. If your ride is not lowered, it should be okay. To play it safe, it's better to go for et45. 

[Roberttan]

Coincidentally, i had this set of rims before. i remember it was 17 inch, et42. With 205 tires, it was rubbing the rear fender on my swift. Sold it to a bro who put onto his cerato with no problems. If your ride is not lowered, it should be okay. To play it safe, it's better to go for et45. 

some car has wider fender whcih can accomadate wider wheel widht and off set.

Lowering your ride could be more prone to rubbing even on stock wheels.

any modification has a little risk of rubbing even sitting on stock wheels.

[Stooky]

My car stock wheel is 17x7 offset 39. Is it ok to change to aftermarket 17x7 offset 50 rim? Can clear brake caliper