2018 Chevrolet Spark Wheel Interchange

2018 Chevrolet Spark Wheel Fitment Guide | wheelinterchange.com

Known OEM Fitment For 2018 Chevrolet Spark

The data below reflects values provided to wheelinterchange.com for at least one factory configuration of the 2018 Chevrolet Spark. Some trims and appearance packages may differ. If anything is unknown or appears to conflict, confirm against your door jamb tire placard, the owner’s manual, and a GM dealer parts catalog before purchasing or installing wheels or tires.

Important note: The listed rim diameter of 16 in and the listed tire size 185/55R15 cannot be part of the same wheel and tire assembly. This indicates more than one OEM configuration exists or the dataset is partial. Match your exact vehicle by reading the door placard and cross-checking the GM part number for your trim. You can also use the calculator below to compare setups once you confirm your actual stock size.

How To Use The Wheel Interchange Calculator

The calculator on this page lets you compare a donor vehicle’s wheels to your 2018 Chevrolet Spark and also test custom sizes. Follow these steps:

• Select Wheels from (donor vehicle). Enter or choose the donor specs. For exactness, include rim diameter, width, and offset. If you plan to keep the donor tires, include section width and aspect ratio.
• Select Installed on (your vehicle) and set it to 2018 Chevrolet Spark. Preloaded values will reflect our known data; update them if your door placard shows a different OEM size.
• Use Custom wheel size to try a different rim diameter, width, and offset. The calculator will update clearances such as inner clearance near the strut and outer poke relative to the fender.
• Use Custom tire size to enter a tire section width and aspect ratio. When you change rim diameter, the tire outer diameter shown will update so you can visualize the effect on speedometer and fender gap.
• Keep total tire diameter as close to your OEM diameter as practical, typically within about 2 to 3 percent, to help maintain speedometer accuracy and ABS behavior.
• Watch inner clearance. Increasing wheel width or decreasing offset reduces inner clearance. Make sure you still clear struts, spring perches, and liners.
• Watch outer poke. Increasing width or increasing offset can cause rubbing on fenders during compression or steering.
• Record the final specs and verify physically on the car before driving. A test fit without tires, then with tires at ride height, is recommended.

Fitment Checklist Before You Buy

• Bolt pattern: Must be 4x100. Do not attempt to fit 4x108, 5x100, or other patterns.
• Center bore: Vehicle hub is 56.6 mm. Aftermarket wheels with a larger bore require hub-centric rings with a 56.6 mm inner diameter. Do not use a wheel with a smaller bore than the hub.
• Thread size: M12 x 1.5. Confirm lug seat type matches the wheel design. Common seat types are conical or ball; verify visually or with the wheel maker.
• Offset and backspacing: One OEM configuration is 16x6.5 ET45 with about 5.02 in backspacing. If your OEM wheels differ, use your known baseline in the calculator to judge inner and outer clearance before selecting new wheels.
• Brake and suspension clearance: Test for at least a few millimeters of clearance to calipers, knuckles, and struts. Spin the wheel by hand during a test fit.
• Fender clearance: Check at full steering lock and with the suspension compressed. Consider passengers and cargo.
• Tire load and speed ratings: Meet or exceed the OEM ratings on your door placard.
• TPMS compatibility: Confirm sensor frequency and valve type. Relearn procedure may be required after installation.
• Spare and rotation strategy: If using staggered or directional tires, plan for rotations and roadside spare solutions.

Plus Sizing And Common Upgrades

Because the provided dataset shows both a 16 inch wheel and a 15 inch tire size, multiple factory setups likely exist. Owners sometimes explore plus sizing for appearance or handling. Use the guidelines below with the calculator and confirm against your own OEM baseline before buying.

• Plus zero: Keep your current rim diameter but use a wider wheel and tire with a similar overall tire diameter. Check offset changes carefully to maintain inner and outer clearance.
• Plus one: Increase wheel diameter by 1 inch and choose a lower-profile tire to keep overall diameter close to stock. Verify speedometer change and clearances in the calculator.
• Plus two or more: Larger wheels reduce sidewall height and may impact ride comfort and pothole protection. Carefully confirm fender and suspension clearance and consider local road conditions.
• Offset tuning: Small offset changes alter scrub radius and steering feel. Keep changes conservative and validate with a test fit.
• Hub-centric fit: If using aftermarket wheels with bores larger than 56.6 mm, install quality hub rings for vibration-free driving.

Installation Tips

• Prepare hub faces: Clean rust and debris from hub and rotor hats so wheels seat flat. A light film of anti-seize on the hub pilot can help future removal. Keep it off the wheel-to-rotor friction surfaces.
• Use correct hardware: Match lug thread (M12 x 1.5) and seat type to the wheel. Do not reuse damaged or mismatched lugs.
• Centering: If using hub-centric rings, install them snugly in the wheel bore before mounting. Hand start all lugs.
• Tightening pattern: Snug lugs in a star pattern. Lower the vehicle and torque to the OEM specification from your owner’s manual or GM service information. Do not guess the torque value.
• Re-torque: Recheck torque after 50 to 100 miles of driving.
• TPMS: Transfer or install compatible sensors. Perform the relearn procedure for the 2018 Spark as specified by GM.
• Test for rub: With the car on the ground, turn the steering wheel lock to lock and drive slowly over a speed bump while listening for contact.

Tools And Helpful Supplies

• Wheel torque wrench 1/2 inch drive
• M12 x 1.5 lug nuts
• 56.6 mm hub-centric rings
• Tire pressure gauge

FAQs

• What is the bolt pattern on the 2018 Chevrolet Spark?

  The Spark uses a 4x100 bolt pattern. Any replacement wheel must match this pattern exactly.

• My door placard shows a different tire size than listed here. Which is correct?

  Follow your door placard and owner’s manual. The data on this page can reflect another OEM package. Use your actual OEM size as the baseline in the calculator.

• Do I need hub-centric rings for aftermarket wheels?

  If the wheel’s center bore is larger than 56.6 mm, use rings with a 56.6 mm inner diameter and the wheel’s outer diameter. If the wheel bore is exactly 56.6 mm, rings are not needed.

• What offset should I use?

  One OEM setup is ET45 on a 16x6.5 wheel. If your OEM setup differs, use that as the baseline. Keep offset changes conservative and verify inner and outer clearance with a test fit and the calculator.

• Can I run 16 inch wheels if my car came with 15 inch tires?

  Possibly, depending on brake, fender, and suspension clearance. Use the calculator to plan a 16 inch package with a tire that maintains overall diameter close to your OEM size, then test fit before driving.

• What lug nuts does the 2018 Spark use?

  Threads are M12 x 1.5. The seat style depends on the wheel design. Verify whether your wheels require conical or ball seats and use matching hardware.

• What torque should I use on the lug nuts?

  Refer to the 2018 Chevrolet Spark owner’s manual or GM service information for the official torque specification. Do not guess. Torque in a star pattern and recheck after 50 to 100 miles.

• Will changing wheel size affect my speedometer?

  Yes, if the overall tire diameter changes. Keep total diameter within about 2 to 3 percent of OEM. The calculator shows the difference so you can choose a suitable tire size.