PDA

View Full Version : 0 offsets and z brakes


NashT
12-10-2019, 11:54 AM
Hey guys, just wondering if anyone knows if any 0 offset wheels will clear the 30mm z brakes without spacers??

Im currently rocking some 04 g35 rims with a 20mm spacer to clear the calipers.

Im leaning towards 17x7 in front and 17x8 or 8.5 in rears

Any first hand expirence would be much appreciated

NashT
12-10-2019, 04:00 PM
The wheels I currently have a 03-04 G35 rims that are 17x7 with a 40mm offset and im having to run a 20mm spacer to clear my z32 calipers.

Im wanting to get some nicer rims, but Im really not sure what offset or backspacing I need.
I had some 0 offsets I was running before the 5 lug swap and really liked how aggressive they looked, thats why Im wondering if anyone knows if and what 0 offset wheels will work with no spacers with the z32 brakes

NashT
12-10-2019, 04:01 PM
Also im trying to rule out coilover clearances, why im thinking about sticking with a 7" wide wheel

S14rebuild
12-10-2019, 04:37 PM
Just figure out the offset of ur 2004 g35 wheels and then try using an offset calculator that will show u what wheel would work

tb13
12-10-2019, 06:51 PM
For Z32 brakes look at the wheel face and back pad height, these aspects matter more than offset. A concave face with a tall back pad will clear without issue, a low offset wheel with a flat face, short back pad and large lip, will not.

For coilover clearance low offset helps a ton, if you are planning to run a +0 wheel you should have no issues unless its super wide.

I'm curious about what 17x7 +0 wheels you found, that is a very odd size unless its a custom built 3pc wheel.

NashT
12-11-2019, 07:21 AM
Hey TB thanks for the info man.

The wheels I found are ridler 650's, i dig em just not sure how they would look on a 240.
Specs: staggered 17x7 0 offset 4" backspace, 17x8 0 offset 4.5" backspace

Thanks for the idea of using a wheel offset calculator hadnt thought of that.

Im not set on running a 7" wide, I just see it works with zero interference running the g35 rims currently, and with the needed 20mm spacer to clear the calipers, the wheels are actually hella flush

I know those ridlers are not a traditional choice for our rides but im not trying to be traditional with my aesthetics

Info is much appreciated, so 0 offset is great for clearances depending on rim width, got it.

Sorry guys this wheel shit just doesnt mesh in my head but I know the difference between offset and backspace

TheRealSy90
12-11-2019, 07:43 AM
Wheel face design matters more for brake clearance than width/offset.

FaLKoN240
12-11-2019, 12:46 PM
Disc is more critical to BBK clearance than offset.

TheRealSy90
12-11-2019, 12:48 PM
Thats what I said mang

NashT
12-11-2019, 01:15 PM
Like the backspacing or the actual design of the wheel spokes?

Backspacing is how much distance there is from the hub mounting point to the wheel spokes right? Aka the clearance I need for the z32 calipers right?

Yall might laugh but i think im going to make a mockup out of cardboard so i can visually see the stance and check clearances.

NashT
12-11-2019, 03:56 PM
Well screw it ill just get some rfps1

What size 17's offset and width fits z32 and stock fenders?

brndck
12-11-2019, 04:18 PM
Well screw it ill just get some rfps1

What size 17's offset and width fits z32 and stock fenders?

https://lmgtfy.com/?q=z32+wheel+fitment

FaLKoN240
12-11-2019, 05:44 PM
Like the backspacing or the actual design of the wheel spokes?

Backspacing is how much distance there is from the hub mounting point to the wheel spokes right? Aka the clearance, I need for the z32 calipers, right?

Yall might laugh but I think I'm going to make a mockup out of cardboard so I can visually see the stance and check clearances.

You're conflating a bunch of different things.

Backspacing is the same as offsets.

Disc size is determined by how thick the mounting pad is that connects to the hub. Higher disc spacing pushes the spokes away from the brakes.

Lower disc size decreases the spacing and usually gives more concave face deign or larger lips on multi-piece wheels.

Seriously this stuff is searchable.

NashT
12-11-2019, 08:51 PM
You're conflating a bunch of different things.

Backspacing is the same as offsets.

Disc size is determined by how thick the mounting pad is that connects to the hub. Higher disc spacing pushes the spokes away from the brakes.

Lower disc size decreases the spacing and usually gives more concave face deign or larger lips on multi-piece wheels.

Seriously this stuff is searchable.

Bro, boom light bulb! That was the missing link, now it makes sense to me. Thats what I wasnt understanding, how would you know how long the hub extends based off backspacing and offset.

Ive been googling rim shit all day and I haven't seen disc height anywhere! But yeah thats what was missing.

Not tryn to argue but after reading offset and backspacing are 2 completely different things.

But awesome man, seriously thank you for taking the time to explain that. So now I just need to measure the disc height on my g35 rims and add 20mm and then I will know what length disc height I need to clear my z32 brakes.

I know many of you will think im dumb, but I just didnt have the knowledge, but really thank you guys for bearing with me

brndck
12-12-2019, 08:51 AM
Not tryn to argue but after reading offset and backspacing are 2 completely different things.

offset is the measurement from the centerline of the wheel to the mounting surface where the wheel meets the hub on the car

backspacing is the measurement from the mounting surface where the wheel meets the hub on the car, to the inside lip of the wheel.

great resource that has video explanations, etc.
https://realtruck.com/blog/wheel-offset-vs-wheel-backspacing/?gclid=EAIaIQobChMIurq56bqw5gIVsR-tBh0B3AZAEAAYASAAEgKp4vD_BwE

FaLKoN240
12-12-2019, 11:12 AM
https://www.more-japan.com/blogs/2011/08/26/understanding-the-disk-types/

KillaGuapo
01-29-2020, 08:18 AM
Could you post a pic of your car on the wheels

Sent from my Pixel 3 XL using Tapatalk

NashT
01-29-2020, 10:49 AM
Could you post a pic of your car on the wheels

Sent from my Pixel 3 XL using Tapatalk

Im unable to upload any photos on here despite reading the how to.
Feel free to shoot me an email at [email protected]

And id be happy to sent you pictures before and after an alignment

The 17x9 +20 are pretty perfect and have plenty of room for the Z32 calipers