Wheel Spacers
Originally Posted by robdinero
I used the spacers that are hub centric with its own studs attached. They bolt onto the wheel and the wheel bolts onto the spacer.
Originally Posted by robdinero
Akataspacer.com, I had to call as the drop down menus didn’t have Lexus in the lineup but they make them for us. Great quality stock ride perfect flush IMO..
Mathematically speaking, the turning radius of the car will now be larger with this modification. Have you ever tried driving the car to achieve maximum suspension dip with the wheels steered to lock? Based on the suspension-to-wheel well limited spacing on the OEM setup, it would be fair to assume that there will be some rubbing in that specific circumstance.
Last edited by SuperGT; Sep 27, 2019 at 07:48 AM.
The spacer has its own studs which is a direct fit for our stock wheels. Bolt the spacer onto the stock studs once that’s done bolt the wheel onto the spacer with attached studs. Sounds more complicated than it really is.
I understand the process....just wondering of the recesses in the back of the OEM wheels were deep enough to cover the lugs on the wheel adapters. Might be a stupid question since yours apparently fit just fine.
Mathematically speaking, the turning radius of the car will now be larger with this modification. Have you ever tried driving the car to achieve maximum suspension dip with the wheels steered to lock? Based on the suspension-to-wheel well limited spacing on the OEM setup, it would be fair to assume that there will be some rubbing in that specific circumstance.
Not a stupid question at all that’s why we are here to help with the knowledge we have. The recesses on the back fit fine and are more than deep enough, they fit perfect.
I agree with others here, that the stock 21" wheel is nice looking. But for me, they are non starters. They are just too narrow. They are narrower (both front and rear) than the wheels on an RC or a GSF. And the RFTs in front have less cross section than the RCF or GSF. I don't understand why Lexus did this
They seem to be returning to the ISF mindset. IMHO, the ISF was undertired and underwheeled when introduced.
Lou

They seem to be returning to the ISF mindset. IMHO, the ISF was undertired and underwheeled when introduced.
Lou
I’ve never tracked the car to achieve its upper limits but I drive aggressively. Lock to lock the turning radius isn’t hindered in any way and I’ve yet to feel any rubbing of any kind. Honestly I don’t think 20mm is enough width to change any of the dynamics of the suspension. There are generally 2 camps when it comes to spacers and it’s hate/love. I’ve put spacers on almost every vehicle I’ve owned as I love a more shall I say pit bull like stance, squared up not sunken in. I’ve ran them for years with nary a problem. Maintenance is key, make sure they are properly torqued every few weeks and like me you should never have a problem.
^^^^I'm not a proponent of wheel spacers by any means. IMHO, if you want to change the offset, change the wheel, The LC has a front track of 64.2" and a rear track of 64.4". Changing the offset, let's spitball it here and say by 10mm. The stock offset on an LC is 25mm front and rear. 10mm is equal to .4". So we are talking about increasing the track by .8" (both sides). That is a difference of about 1.3% front and rear, IMHO, not worth mentioning.
Now, I have changed the wheels on my LC. The specs on my wheels are 9½" by 21" front with a 5mm offset and 10½" rear with a 15mm offset. My tires are now MPS4S 255/40/21 and 295/35/21.
I can absolutely tell you that my LC handles far better than with the stock wheels and it seems to brake better too. If I were building my wheels today, I would have pushed the rears out another 5mm.
BTW, here's an old thread concerning wheel spacers:
https://www.clublexus.com/forums/is-...2-spacers.html
Another BTW, I bought my first car in 1957, a 1950 Mercury Coupe. In all that time, none of my cars has remained stock. They all have been modified to some extent, including wheels with different dimensions than stock. Since, over the years, I have have gained an understanding of what I am doing, all my modifications have been improvements.
IOW, modifying a vehicle is not a bad thing.
Lou
Now, I have changed the wheels on my LC. The specs on my wheels are 9½" by 21" front with a 5mm offset and 10½" rear with a 15mm offset. My tires are now MPS4S 255/40/21 and 295/35/21.
I can absolutely tell you that my LC handles far better than with the stock wheels and it seems to brake better too. If I were building my wheels today, I would have pushed the rears out another 5mm.
BTW, here's an old thread concerning wheel spacers:
https://www.clublexus.com/forums/is-...2-spacers.html
Another BTW, I bought my first car in 1957, a 1950 Mercury Coupe. In all that time, none of my cars has remained stock. They all have been modified to some extent, including wheels with different dimensions than stock. Since, over the years, I have have gained an understanding of what I am doing, all my modifications have been improvements.
IOW, modifying a vehicle is not a bad thing.
Lou
Last edited by flowrider; Sep 28, 2019 at 08:51 AM.
Originally Posted by flowrider
^^^^I'm not a proponent of wheel spacers by any means. IMHO, if you want to change the offset, change the wheel, The LC has a front track of 64.2" and a rear track of 64.4". Changing the offset, let's spitball it here and say by 10mm. The stock offset on an LC is 25mm front and rear. 10mm is equal to .4". So we are talking about increasing the track by .8" (both sides). That is a difference of about 1.3% front and rear, IMHO, not worth mentioning.
Now, I have changed the wheels on my LC. The specs on my wheels are 9½" by 21" front with a 5mm offset and 10½" rear with a 15mm offset. My tires are now MPS4S 255/40/21 and 295/35/21.
I can absolutely tell you that my LC handles far better than with the stock wheels and it seems to brake better too. If I were building my wheels today, I would have pushed the rears out another 5mm.
Now, I have changed the wheels on my LC. The specs on my wheels are 9½" by 21" front with a 5mm offset and 10½" rear with a 15mm offset. My tires are now MPS4S 255/40/21 and 295/35/21.
I can absolutely tell you that my LC handles far better than with the stock wheels and it seems to brake better too. If I were building my wheels today, I would have pushed the rears out another 5mm.
I suggest viewing this video in order to get an objective, non-biased engineer's approach to this modification. Points 3 and 4 in particular explain the collateral costs of wheel spacers. to each their own but to claim that there will not be any measurable negative effects is false.
https://www.youtube.com/watch?v=hWijfooeSyU
https://www.youtube.com/watch?v=hWijfooeSyU
Interesting stuff. Thanks for posting.
I have had aftermarket wheels with more aggressive offsets made for almost all of my last several performance cars (Corvettes). Anywhere from 10-18 mm different than stock. I did use a 20mm set of wheels adapters (spacers with built in bolts) on my 2010 Nissan 370Z. I never experienced any issues on these vehicles. I always dumped the runflats and the result of these two mods was a better ride and better handling. In all cases the wheel/tire combination was lighter than stock except for the Nissan: stock wheels.
For my LC500, I am having custom forged wheels made with an additional 1/2" width in front and 1" in the rear. When installed, the front wheels will have an additional +13mm in the front and +15 in the rear which includes the additional 6mm and 12mm gained from having the wider wheels. I will be going with non-runflat Michelin PS4's in wider sizes: 255/40/21 and 295/35/21. I stayed fairly conservative with the offsets since I'm currently running some custom made 10mm spacers with the stock wheels. These allow for some deeper lugs so I don't lose any threads. They look pretty good but still not as close to flush as I would prefer. I'm not sure how much the new tires will stick out past the wheels (they can vary) so if I have to add a 3-5mm spacer to get them perfectly flush I will do so.
I did order a pair of the Akata 20mm spacers (thanks Robdeniro) just to see what an additional 20mm of offset looks like. I still have time to change the offsets of the custom wheels if I decide to do so.
Not sure why Lexus made the wheels so thin, but I think the wider wheels and tires, slightly more aggressive offsets, and non-runflats will improve the car....although it's already pretty damned good. Having come from the world of Corvettes, I still marvel at how well-made the Lexus is.....easily rivaling the high-end German machines I've had.
Last edited by LC500NV; Sep 28, 2019 at 04:25 PM.
Originally Posted by LC500NV
I did order a pair of the Akata 20mm spacers (thanks Robdeniro) just to see what an additional 20mm of offset looks like. I still have time to change the offsets of the custom wheels if I decide to do so.
& thanks again Robdeniro for your recommendation!








