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(I PM’d this message to a senior member here but I realized I might not have full PM permissions as I’m a new member so I’m starting a thread as well)
Hey guys, I’ve been extensively researching fitment specs for some new wheels, spacers, etc. and am having a really rough time understanding it all.. so plz forgive my ignorance with all of this.... I’ve read through the “C43 wheel fitment guide” thread plenty of times but to be honest, I just can’t wrap my head around the numbers and adjustments etc. (and I promise u, I’m not a dumb guy lol).
I have a 2020 C43 sedan with the stock 18” five spoke wheels. I know the fitment for these are:
225/45 R18 on 7.5 j x 18 ET33
245/40 R18 on 8.5 j x 18 ET49
Now, I just ordered the H&R sport springs and am also looking to get some wheels and spacers to make sure things look as clean as possible (minimize the reverse rake look, obtain a nice flush fitment, etc.)
For wheels I’m looking at either:
18”/8.5 +35 front
18”/9.5 +38 rear
or
19”/8.5 +35 front
19”/9.5 +38 rear
If I was using the stock wheels on stock height, I think I would’ve went with a 5mm spacer up front and a 12-15mm spacer on the rear... these seem to be the basic recommendations for stock 18’s on stock height for a classy and fairly flush fitment. Now if I go with the 18’s 8.5+35/9.5 +38 set up with the lowering springs, what does that mean for the spacers? Do I still need spacers front AND rear? And how does that change the spacer size I would need considering my stock setup choices (5mm front and 12-15mm rear)? And my same question stands if I go with the 19”s 8.5 +35/9.5 +38... what spacers are needed?
I understand at the end of the day it’s all preference, but I just need a little direction if someone can help with that.
With an 8.5” wide front rim you’ll need +30 offset. So add a 5mm spacer if the offset is +35.
9.5 in the rear with +38 is about as aggressive as you can get. Most run 9.5 with +45. Im running 10” rear with +45 and have 2 or 3mm clearance. 9.5 +38 won’t need any spacers.
Tire width also makes a difference. You should be good with a 235 front and 265 (to be safe) rear with the above specs.
I might’ve messed up a little... the offset of the wheels I’m considering might be +35 for both front (8.5) and rear (9.5) (NOT +38 for the rear like I previously thought... waiting for vendor to respond with correct specs) what does that mean for the rear spacer situation now?
And as far as tires go... how do you determine the correct wall size (235/?/18 and 265/?/18)?... I found some tire/wheel calculators and charts and am contemplating this:
FRONT:
Tire: 235/40/18
Wheel: 18 x 8.5 +35 (w/5mm Spacer)
REAR:
Tire: 265/35/18
Wheel: 18 x 9.5 + 35 (spacer needed?)
**if offset is +38 then no spacer
With H&R Sport Springs, would this setup work? Flush? No poke? Slight poke?
I might’ve messed up a little... the offset of the wheels I’m considering might be +35 for both front (8.5) and rear (9.5) (NOT +38 for the rear like I previously thought... waiting for vendor to respond with correct specs) what does that mean for the rear spacer situation now?
And as far as tires go... how do you determine the correct wall size (235/?/18 and 265/?/18)?... I found some tire/wheel calculators and charts and am contemplating this:
FRONT:
Tire: 235/40/18
Wheel: 18 x 8.5 +35 (w/5mm Spacer)
REAR:
Tire: 265/35/18
Wheel: 18 x 9.5 + 35 (spacer needed?)
**if offset is +38 then no spacer
With H&R Sport Springs, would this setup work? Flush? No poke? Slight poke?
That tire size is borderline out of spec (going off the 19 factory fitment) - I would not recommend that. You'll reduce ground clearance and increase fender gap downsizing tires like that (nearly 3% overall diameter and the non official limit of what you should due to keep speedo, etc. in check).
235/45/18 and 265/40/18 would be more appropriate. The 265/35/18 is actually not awful but the front wheels have a larger diameter from factory already than the rear and I would advise not exacerbating that effect.
That rear fitment, in general, is super aggressive. I think it would poke too much for me, personally, but that's a matter of preference. You might rub slightly on big dips in the road with that set-up (at et35).
(I PM’d this message to a senior member here but I realized I might not have full PM permissions as I’m a new member so I’m starting a thread as well)
Hey guys, I’ve been extensively researching fitment specs for some new wheels, spacers, etc. and am having a really rough time understanding it all.. so plz forgive my ignorance with all of this.... I’ve read through the “C43 wheel fitment guide” thread plenty of times but to be honest, I just can’t wrap my head around the numbers and adjustments etc. (and I promise u, I’m not a dumb guy lol).
I have a 2020 C43 sedan with the stock 18” five spoke wheels. I know the fitment for these are:
225/45 R18 on 7.5 j x 18 ET33
245/40 R18 on 8.5 j x 18 ET49
Now, I just ordered the H&R sport springs and am also looking to get some wheels and spacers to make sure things look as clean as possible (minimize the reverse rake look, obtain a nice flush fitment, etc.)
For wheels I’m looking at either:
18”/8.5 +35 front
18”/9.5 +38 rear
or
19”/8.5 +35 front
19”/9.5 +38 rear
If I was using the stock wheels on stock height, I think I would’ve went with a 5mm spacer up front and a 12-15mm spacer on the rear... these seem to be the basic recommendations for stock 18’s on stock height for a classy and fairly flush fitment. Now if I go with the 18’s 8.5+35/9.5 +38 set up with the lowering springs, what does that mean for the spacers? Do I still need spacers front AND rear? And how does that change the spacer size I would need considering my stock setup choices (5mm front and 12-15mm rear)? And my same question stands if I go with the 19”s 8.5 +35/9.5 +38... what spacers are needed?
I understand at the end of the day it’s all preference, but I just need a little direction if someone can help with that.
HUGE thanks in advance.
Im curious, are you getting the fixed H&R sport springs or the VTF adjustable ones?
With an 8.5” wide front rim you’ll need +30 offset. So add a 5mm spacer if the offset is +35.
9.5 in the rear with +38 is about as aggressive as you can get. Most run 9.5 with +45. Im running 10” rear with +45 and have 2 or 3mm clearance. 9.5 +38 won’t need any spacers.
Tire width also makes a difference. You should be good with a 235 front and 265 (to be safe) rear with the above specs.
Hope this helps.
This is exactly my spec right here. I have a 2019 C43 and like OP, I initially had a difficult time understanding all these dimensions about wheels and tires. Anyhow, with enough research and asking around, I eventually ordered a 19x8.5 +30 front, 19x9.5 +40 rear. My tires are 235/40/19 front and 265/35/19 rear. I am not lowered yet.
EDIT: Answered my question on another thread. SOZ for redundancy
Last edited by Vincent Lluch; 02-15-2021 at 12:05 PM.
Reason: REDUNDANCY
That tire size is borderline out of spec (going off the 19 factory fitment) - I would not recommend that. You'll reduce ground clearance and increase fender gap downsizing tires like that (nearly 3% overall diameter and the non official limit of what you should due to keep speedo, etc. in check).
235/45/18 and 265/40/18 would be more appropriate. The 265/35/18 is actually not awful but the front wheels have a larger diameter from factory already than the rear and I would advise not exacerbating that effect.
That rear fitment, in general, is super aggressive. I think it would poke too much for me, personally, but that's a matter of preference. You might rub slightly on big dips in the road with that set-up (at et35).
ok so I guess I’ll take a look at a different set of wheels then... I don’t want any poking as I’m not a fan of that look... but to each his own
That tire size is borderline out of spec (going off the 19 factory fitment) - I would not recommend that. You'll reduce ground clearance and increase fender gap downsizing tires like that (nearly 3% overall diameter and the non official limit of what you should due to keep speedo, etc. in check).
235/45/18 and 265/40/18 would be more appropriate. The 265/35/18 is actually not awful but the front wheels have a larger diameter from factory already than the rear and I would advise not exacerbating that effect.
That rear fitment, in general, is super aggressive. I think it would poke too much for me, personally, but that's a matter of preference. You might rub slightly on big dips in the road with that set-up (at et35).
Ok thanks... so I’ve noted the more appropriate tire recommendations for a set of 18” wheels as I do not want any noticeable poke.
Originally Posted by Vincent Lluch
Im curious, are you getting the fixed H&R sport springs or the VTF adjustable ones?
Going with the fixed sport springs. On sale right now at tire rack for $203 if ur looking at those.
Originally Posted by Vincent Lluch
This is exactly my spec right here. I have a 2019 C43 and like OP, I initially had a difficult time understanding all these dimensions about wheels and tires. Anyhow, with enough research and asking around, I eventually ordered a 19x8.5 +30 front, 19x9.5 +40 rear. My tires are 235/40/19 front and 265/35/19 rear. I am not lowered yet.
EDIT: Answered my question on another thread. SOZ for redundancy
Ok great... so I’ve noted your setup specs as well just in case I decide on 19” wheels.
Another question, do the front and rear offsets remain the same for an 18” wheel setup vs 19” wheel setup to get a fairly flush look while lowered?
For example, would these be appropriate specs:
18 x 8.5 +30
18 x 9.5 +40
vs
19 x 8.5 +30
19 x 9.5 +40
as you can all see, understanding offsets and how to manipulate them according to setup and needs is what’s giving me the most difficult time. But all of the info received so far is helping a lot. Anyone willing to share pics of their cars so I can get a better understanding of these different specs in their applications??
Don't want to burst your bubble my dude, but reading through owner's experiences and all that, I heard that non adjustable H&R sport springs causes reverse rakes on majority of the sedans. If you don't mind the rake then It'll be fine.
I too have a 2019 c43 which i have been wanting to lower for a while now but reading through all forums again, I think i will save up a bit more for the adjustable ones but that's just me though. To each his own!
If you end up lowering with the springs, gluck and show some pics! may change my views lol
Don't want to burst your bubble my dude, but reading through owner's experiences and all that, I heard that non adjustable H&R sport springs causes reverse rakes on majority of the sedans. If you don't mind the rake then It'll be fine.
I too have a 2019 c43 which i have been wanting to lower for a while now but reading through all forums again, I think i will save up a bit more for the adjustable ones but that's just me though. To each his own!
If you end up lowering with the springs, gluck and show some pics! may change my views lol
lmao... you kno what’s funny.. I was having second thoughts about them after I had already ordered them because of the reverse rake issue and I woke up this morning to an alert from chase saying they declined my tire rack (springs) purchase because they thought it was fraud... I think I’ll hold off now and invest in the adjustable ones like you’ve recommended.
Care to share a pic of your non lowered setup with the 19”s?
Ok thanks... so I’ve noted the more appropriate tire recommendations for a set of 18” wheels as I do not want any noticeable poke.
Going with the fixed sport springs. On sale right now at tire rack for $203 if ur looking at those.
Ok great... so I’ve noted your setup specs as well just in case I decide on 19” wheels.
Another question, do the front and rear offsets remain the same for an 18” wheel setup vs 19” wheel setup to get a fairly flush look while lowered?
For example, would these be appropriate specs:
18 x 8.5 +30
18 x 9.5 +40
vs
19 x 8.5 +30
19 x 9.5 +40
as you can all see, understanding offsets and how to manipulate them according to setup and needs is what’s giving me the most difficult time. But all of the info received so far is helping a lot. Anyone willing to share pics of their cars so I can get a better understanding of these different specs in their applications??
TBH, i have no clue regarding 18" wheels man lol. It took me like a long *** time to understand the dimensions with 19" and I didn't research all the other sizes, most likely because my car already came with the 19s. I did not want to upsize nor downsize. Sorry bud.
I will do so later when i get the chance. I do not have a lot of pictures but ill send you what i got. Also, my wheels are gun metal gray stance SF07 that was custom drilled for the c43. The dimensions, especially the offsets are tricky with the c43 because of the control arm.
TBH, i have no clue regarding 18" wheels man lol. It took me like a long *** time to understand the dimensions with 19" and I didn't research all the other sizes, most likely because my car already came with the 19s. I did not want to upsize nor downsize. Sorry bud.
Haha, I totally understand! Mine came with the 18” factory wheels so I was really trying to understand the 18” setup specs... but then got thrown for a loop with all of the 19” recommendations haha. But it’s all helping.... I’m sure I’ll eventually piece it all together accordingly.
Originally Posted by Vincent Lluch
I will do so later when i get the chance. I do not have a lot of pictures but ill send you what i got. Also, my wheels are gun metal gray stance SF07 that was custom drilled for the c43. The dimensions, especially the offsets are tricky with the c43 because of the control arm.
Ooh nice, yea I’d love to see whenever you get the chance to share. Thanks a lot!
Don't mind the background lol. I was in a bad area of the city trying to look for an in house barber during the peak of the pandemic lol Anyhow, these are raw unedited photos of my non lowered 19" setup
Don't mind the background lol. I was in a bad area of the city trying to look for an in house barber during the peak of the pandemic lol Anyhow, these are raw unedited photos of my non lowered 19" setup
She’s a beaut, pal... great set of wheels!... and thanks for the visual reference
Ok... so after much searching and researching lol, I think I’m going to go with:
Wheels:
19” Verde Axis V99
19x8.5 +30 (front)
19x9.5 +48 (rear - possibly with a 3-5mm spacer)
Tires: 235/40/19 (front) 265/35/19 (rear)
*can’t find the ps as4’s in these sizes*
All on H&R VTF Adjustable Lowering Springs (at a later date most likely)
If anyone sees something wrong with any of these specs, plz advise.
EDIT: sooo I can’t find the Michelin PS A/S 4’s in the above tire specs smh... can someone recommended another tire size that will still work with this wheel setup? Thanks guys.
235/35/19
255/35/19
?? I’m so lost with the tire situation now. Smh. Should I just look into a different All Season tire? I’d prefer all season living in NYC.
Alright guys... everything is ordered... I went with:
H&R VTF Adjustable Springs
Verde Axis V99 19 x 8.5 +30 front 19 x 9.5 +48 rear (will be using a 5mm spacer on the rears to get a +43 et which seems like it will be a nice middle ground for aggressiveness and clean fitment)
Goodyear Eagle Exhilarate’s UHP All-Seasons (235/40/19 front and 265/35/19 rear)
Rear tires won’t be in stock for 2-3wks so I’ll be back to post install pics in a few weeks time.
Big thanks to everyone here who responded with crucial and invaluable input/info!
Alright guys... everything is ordered... I went with:
H&R VTF Adjustable Springs
Verde Axis V99 19 x 8.5 +30 front 19 x 9.5 +48 rear (will be using a 5mm spacer on the rears to get a +43 et which seems like it will be a nice middle ground for aggressiveness and clean fitment)
Goodyear Eagle Exhilarate’s UHP All-Seasons (235/40/19 front and 265/35/19 rear)
Rear tires won’t be in stock for 2-3wks so I’ll be back to post install pics in a few weeks time.
Big thanks to everyone here who responded with crucial and invaluable input/info!
Not bad at all! Hope the rear would be flushed enough considering offet's at +43 with a 9.5 width. Usually, our clients would go for +38 offset (no spacers) with 19x9.5.
We can't wait to see how it goes! Also, good call on the H&R VTFs 👀
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Check Out The*All NEW BD-F25
Not bad at all! Hope the rear would be flushed enough considering offet's at +43 with a 9.5 width. Usually, our clients would go for +38 offset (no spacers) with 19x9.5.
We can't wait to see how it goes! Also, good call on the H&R VTFs 👀
***Mention You Are From The Forum For The Best Deals***
Check Out The*All NEW BD-F25
Thanks a lot!... yes I’m wondering about the rear fitment possibly not being aggressive enough as well... I would like to buy some 10mm spacers also to try both scenarios when installing but I’m not exactly sure which 10mm “special” spacers are the correct ones that fit our hubs.... is it these?
02-14-2021, 04:11 PM
