Do Not Sell My Personal Information Jump to content


  • Join The Club

    Join the Lexus Owners Club and be part of the Community. It's FREE!

     

Rear end sitting higher than front


Recommended Posts

Hi all,

We all know the rear end sits up a slightly higher with the nose pointing down - I wanted to know if this was purely down to the different tyre sizes or is suspension at play here also?

I have 18" ISP MODE alloys ready to go on and am choosing tyres.

I'd quite like to get my car sitting level. Can I achieve this choosing the right tyres or would I need to fiddle suspension also??

Link to comment
Share on other sites

It is just how the majority of modern mid-range sports saloons are styled these days. The idea is to give a low 'sporty' front end whilst providing decent boot capacity. I think you will find that the gaps between tyres and wheel arch tops are pretty much even front/rear and the bottom of the sills are level with the ground. Any attempt to re-orientate it by fiddling with tyres/wheel sizes will upset those parameters and make it look very odd.

Link to comment
Share on other sites

I guess for me the deeper tyre walls make it more apparent.

What are the standard tyre sizes for the 18" F Sport rims?

Is it true to get the measurement of a tyre wall you use the profile number as a % of the tyre width?

eg 255/35/18 the tyre wall would be 35% of 255 = 89.25??

Link to comment
Share on other sites

Yes - pretty much - in mm - forget the decimal places!

You don't mention what rim width your wheels are - standard tyre sizes for 18" rims (I think this will apply to F Sport models as well as others) are 225/40R18 and 255/40R18. But that is with 8" rims on the front and 8.5" rims on the rear. Don't put 255 tyres on 8" rims - you need at least 8.5" rims for them, and preferably 9".

BTW - my comments in the post above apply also to fiddling with the suspension - probably even more so.

Link to comment
Share on other sites


On 7/26/2016 at 9:40 AM, Billnick said:

I have 2x 18x8 for the front and 2x 18x8.5 for the rear

That is correct assuming you have original Lexus wheels, so it would be correct to stick with original the tire sizes as well - 225/40R18 and 255/40R18. Now that said I guess you can achieve "lower looking" rear end with using narrower tires in the rear, which will make them "stretched" a bit, would make overall rolling radius smaller and rear end visually more level with the front. However, as mentioned by others it would upset the setup and I would not recommend anything less than 245 on the rear. 

Link to comment
Share on other sites

What if I went 255/35/18 on the rear? I guess it's only a difference of approx 10mm (35 vs 40 profile) so prob not worth messing with the setup.

I will have a proper look tonight, but although I can clearly see that the rear sits up, I have not paid any attention to the sills....if the sills are level with the road then the body has been purposely shaped to sit on a higher rear end and lowering the rear would look even worse haha

Link to comment
Share on other sites

That is exactly what it is .. the car is taller in the rear and kind of pointy in the front. The reason why many people pick up rear wheels as the issue is not really the radius of the wheels, but because Lexus decided to have staggered not only rims but as well tires. Therefore, rear tires are kind of squared while front ones looks stretched. This is as well reason why I am suggesting narrower rears, so that both rears and fronts would look more similarly stretched.. rather than having that completely horizontal side wall only on rears. This is especially noticeable on 18 set-up, little bit less on 17 inch.

Link to comment
Share on other sites

Latest Deals

Lexus Official Store for genuine Lexus parts & accessories

Disclaimer: As the club is an eBay Partner, The club may be compensated if you make a purchase via eBay links

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share







Lexus Owners Club Powered by Invision Community


eBay Disclosure: As the club is an eBay Partner, the club may earn commision if you make a purchase via the clubs eBay links.

DISCLAIMER: Lexusownersclub.co.uk is an independent Lexus forum for owners of Lexus vehicles. The club is not part of Lexus UK nor affiliated with or endorsed by Lexus UK in any way. The material contained in the forums is submitted by the general public and is NOT endorsed by Lexus Owners Club, ACI LTD, Lexus UK or Toyota Motor Corporation. The official Lexus website can be found at http://www.lexus.co.uk
×
  • Create New...