Questions about stock ZL1 wheels and tires

SHE'Z 18 · 06-18-2024, 09:43 PM

Hello Z Nation,
I’ve done several searches and don’t feel that I’ve hit the spot on my inquiries. Here’s the down and dirty that I’m trying to find out: Side note - the Z has not been lowered. All stock still.

1: Does anyone know if 295/30/20 will safely fit on the FRONT ZL1 wheels?
- Any rubbing or other known issues to upping it from 285 to 295?

2: Does anyone know if 315/30/20 will safely fit on the REAR ZL1 wheels?
- Any rubbing or other known issues to upping it from 305 to 315?
- Will upping to 315 require the movement of the rear cables in the wheel well?

3: Width & Offset of the stock ZL1 FRONT wheels?

4: Width & Offset of the stock ZL1 REAR wheels?

I’m looking at replacing the GY’s with new tires with future plans of going to aftermarket wheels that are slightly wider than our stock ZL1 wheels (more concave). In the meantime, I’m wondering if I can get the tires now and wheels will come later. In doing so, I just want to be sure there won’t be any issues with wheel / tire fitment and no rubbing or other damage causing issues.

I greatly appreciate all input here. I’m just looking to get some real world experience from the Z Team Members. I’m not looking to track the Z. Just spirited drives on the twists and turns. Thanks everyone!!

Vigilante375 · 06-18-2024, 10:54 PM

Myaybe this'll help...

https://apexwheels.com/fitment-guide...-fitment-guide

I know that the height is causes the issue with the harness. So anyways above the stock 30 aspect will potentially cause an issue. But it's like a 10 minute or less job to complete with very basic tools in your driveway or garage. So why not move it?

2023_ZL1-AUTO · 06-20-2024, 06:19 AM

I actually just went down this same patch... I reached out to Apex as I was looking for wider tires than stock size and different wheels. I was willing to change out the stock wheels for other wheels that would allow wider tires. Although I hinted wheel/tire combos for the track. This is what Corey at Apex responded with:

Cory S. (Apex Wheels)

Jun 14, 2024, 3:24 PM PDT

Hi Scott, thanks for reaching out. Here's what I would suggest for your combo:

https://apexwheels.com/vehicles/chev...ize=18x11-et35

For tires, I'd run 275/35-19 up front and then you could go with a number of rear tires, but 305/40-18 or 315/40-18 are common choices among the drag tire offerings.

Cory S. - Domestic Brands Specialist
Apex Wheels
Main: (925) 245-0773

06-18-2024, 09:43 PM	#1
SHE'Z 18 Drives: 18 ZL1 - M6 Join Date: Mar 2019 Location: MI Posts: 455	Questions about stock ZL1 wheels and tires Hello Z Nation, I’ve done several searches and don’t feel that I’ve hit the spot on my inquiries. Here’s the down and dirty that I’m trying to find out: Side note - the Z has not been lowered. All stock still. 1: Does anyone know if 295/30/20 will safely fit on the FRONT ZL1 wheels? - Any rubbing or other known issues to upping it from 285 to 295? 2: Does anyone know if 315/30/20 will safely fit on the REAR ZL1 wheels? - Any rubbing or other known issues to upping it from 305 to 315? - Will upping to 315 require the movement of the rear cables in the wheel well? 3: Width & Offset of the stock ZL1 FRONT wheels? 4: Width & Offset of the stock ZL1 REAR wheels? I’m looking at replacing the GY’s with new tires with future plans of going to aftermarket wheels that are slightly wider than our stock ZL1 wheels (more concave). In the meantime, I’m wondering if I can get the tires now and wheels will come later. In doing so, I just want to be sure there won’t be any issues with wheel / tire fitment and no rubbing or other damage causing issues. I greatly appreciate all input here. I’m just looking to get some real world experience from the Z Team Members. I’m not looking to track the Z. Just spirited drives on the twists and turns. Thanks everyone!!

06-20-2024, 06:19 AM	#3
2023_ZL1-AUTO Drives: 2023 ZL1 - All Bolt On's Join Date: Dec 2022 Location: Columbus, Ohio Posts: 1,245	I actually just went down this same patch... I reached out to Apex as I was looking for wider tires than stock size and different wheels. I was willing to change out the stock wheels for other wheels that would allow wider tires. Although I hinted wheel/tire combos for the track. This is what Corey at Apex responded with: Cory S. (Apex Wheels) Jun 14, 2024, 3:24 PM PDT Hi Scott, thanks for reaching out. Here's what I would suggest for your combo: https://apexwheels.com/vehicles/chev...ize=18x11-et35 For tires, I'd run 275/35-19 up front and then you could go with a number of rear tires, but 305/40-18 or 315/40-18 are common choices among the drag tire offerings. Cory S. - Domestic Brands Specialist Apex Wheels Main: (925) 245-0773 __________________ Katech Track Day CAM 38%•BTR Dual Valve Springs-Johnson Lifters•Trend 3/8 Chromoly Pushrods• VVT Del•CNC Ported Heads•AFM Delete• C5-R Timing Chain•Katech Oil Pump•Katech 112mm•Maggie 2650 3.25” Upper & ATI SD w/10.32” +20%•10 Rib Belt•BGRF•FI Interchiller Stage 2•THPSI Port w/875cc Inj•Dual Drop In Fuel Pump•DSX Aux Pump•Stainless Works 2" w/Legend NPP Axle Back•GESI UHO 4.5" CATs•Brisk RR14S Plugs•BMR Motor Mounts•BMR Cradle Lockout/Bushings Kit•DSS Chromoly DS•RPM 8-Point Roll Cage•10lb FireSense+ w/4Fire SFI 17.1 Fire Sys•Weld Forged Vitesse Rear 17x10 Beadlocks-Front 18x6•Unlocked TCM Last edited by 2023_ZL1-AUTO; 06-20-2024 at 07:06 AM.

06-18-2024, 10:54 PM	#2
Vigilante375 Drives: 2018 Camaro ZL1 Join Date: Aug 2018 Location: Georgia Posts: 1,419	Myaybe this'll help... https://apexwheels.com/fitment-guide...-fitment-guide I know that the height is causes the issue with the harness. So anyways above the stock 30 aspect will potentially cause an issue. But it's like a 10 minute or less job to complete with very basic tools in your driveway or garage. So why not move it?

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