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E8x 1-Series Wheel & Tire Fitment Guide

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Vehicles Covered in this Guide
All years and models of 1-Series coupes (E82) and convertibles (E88). Hatchback (E81 & E87) fitment may differ, please contact us for information on these models. This guide excludes the 1M. Fitment between all other E82 and E88 models is identical.

Chassis Introduction
Some say it’s the modern-day E36. Or E30. Or 2002. Either way, it’s an incredibly popular chassis with enthusiasts for its substantial out-of-the-box capabilities, as well as its tremendous aftermarket support. However, when these cars first hit the market, we at APEX ran into a challenge (and we love solving challenges). The stock wheel offsets are much higher than those of any other BMW model, which meant new fitments had to be produced specifically for this platform. We began by producing the AERO-7 as a 1-Series-specific wheel (now discontinued), and it proved to work well for street and track applications. The fitment was popular, but demand for our classic ARC-8 and EC-7 designs increased, so we adapted those designs to work as well. The results were excellent, and the ARC-8 & EC-7 1-Series wheels have been in high demand ever since.

Bolt Pattern: 5x120 Thread Pitch: M12x1.5mm Center Bore: 72.56mm

 

Performance Street, Track, or Race Fitments

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Because the 1-Series fitment requirements are so specific, we have produced only three wheel sizes which can be used for nearly all types of street, track or race driving. They work well with anything from all-season tires to all-out racing slicks.

Square Setups
Recommended for most types of street and performance driving. Allows proper front-to-rear tire rotation to extend tire life & improve handling balance.

  • Front & Rear: 17x8.5" ET40 with 235/40-17
    • May require minimal front negative camber.
    • 245/40-17 tires can fit, but will require approximately -1.5 degrees or more of front camber. Rear rolled fenders and/or rear negative camber may also be required.

  • Front & Rear: 18x8.5" ET45 with 235/40-18 tires
    • Popular fitment.
    • Direct fit with stock suspension, lowering springs, and a variety of aftermarket coilovers. 5mm front spacers required for certain aftermarket suspensions, see below.
    • 245/35-18 tires can fit with 5mm front spacers and approximately -1.5 degrees of camber or more. Larger front spacers may be required for certain aftermarket suspensions, see below.
    • 255/35-18 tires can fit with 5mm front spacers and approximately -2.5 degrees of camber or more. Larger front spacers may be required for certain aftermarket suspensions, see below.
    • For a spacer-free fitment, see alternate fitment below.

  • Front & Rear: 18x8.5" ET35 or ET38 with 235/40-18 tires
    • Alternate fitment.
    • Requires at least -2 degrees of front camber.
    • Rear fender roll and/or negative camber may be required.
    • 245/35-18 tires can fit with additional front negative camber.

Staggered Setups
Maintains stock-like handling characteristics, tires can only be rotated left to right. Maximizes both front and rear tire width. Staggered setups are recommended for highly tuned cars that need extra rear tire width in order to control their increased power output.

  • Front: 18x8.5" ET45 with 235/40-18 tires
    Rear: 18x9.5" ET58 with 265/35-18 tires
    • Popular fitment.
    • Direct fit with stock suspension, lowering springs, and a variety of aftermarket coilovers. 5mm front spacers required for certain aftermarket suspensions, see below.
    • 245/35-18 front tires can fit with 5mm front spacers and approximately -1.5 degrees of camber or more. Larger front spacers may be required for certain aftermarket suspensions, see below.
    • 255/35-18 front tires can fit with 5mm front spacers and approximately -2.5 degrees of camber or more. Larger front spacers may be required for certain aftermarket suspensions, see below.
    • 275/35-18 rear tires can be used with negative camber and/or rolled fenders.
  • Front: 18x8.5" ET35 or ET38 with 235/40-18 tires
    Rear: 18x9.5" ET58 with 265/35-18 tires
    • Requires at least -2 degrees of front camber.
    • 245/35-18 front tires can fit with additional negative camber.
    • 275/35-18 rear tires can be used with negative camber and/or rolled fenders.

 

Additional Fitment Information

Identifying Aftermarket Suspension Types
If you’re using coilovers, see the image below to identify which type of coilover spring you have, as it may effect your wheel fitment. Lowering springs (Eibach, H&R, Dinan, etc) and shocks (Bilstein, Koni, etc) do not effect inner clearance.
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Aftermarket 1-Series Suspensions Known To Reduce Inner Clearance
(includes but not limited to):

  • Bilstein PSS9 & PSS10
  • KW Height-Adjustable Spring (HAS) kit
  • KW Variants
  • KW Clubsports
  • Öhlins Road & Track

About Camber Plates e82camber.jpg

Adjustable camber plates do more than just aid in wide wheel and tire fitment. They provide increased grip and reduced tire wear by spreading the load evenly during cornering. The photo above shows what happens without negative camber dialed in. Learn more in our blog article, The Positives of Negative Camber, then see our E82 camber plate pages here.

Big Brake Kit Clearances
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We have tested many big brake kits with the wheels listed in this guide. Please email us with any questions related to brake clearance, we’ll be happy to help.

Brake Kits Known To Clear Brake Kits Known Not To Clear
Stock 135i M-Sport Brakes Brembo/Dinan 6-Piston 355mm
Brembo 6-Piston 355mm Brembo 6-Piston 380mm
StopTech ST-60 6-Piston  
This table applies ONLY to 18x8.5" ET35/38 and ET45 ARC-8 and EC-7 designs.

 

FAQ:

What about the 18x9.5” ET43?
The 18x9.5” ET43 is too aggressive to fit on a stock-body 1-Series. It would require fender flares or heavily rolled and pulled rear fenders in order to clear without rubbing.

What if I have 1M front fenders and stock rears?
In this case, you can use the 18x9.5” ET22 front wheel (may require negative camber depending on tire brand/compound) paired with the 18x9.5” ET58 rear. This results in a deeper concavity up front than the rear due to the lower offset. While you still can’t properly rotate tires, it’s a great way to run a 9.5” square setup.

 

Still have questions?
Fill out our Fitment Recommendation form
Call us: 925-245-0773
Email us: support@apexraceparts.com

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