TreadCompass

Alfa Romeo 4C Lug Nut Torque

The 2015–2020 Alfa Romeo 4C lug nut torque is 75 ft-lbs (102 N·m).

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Alfa Romeo 4C · 2015–2020

Lug nut torque
75ft-lbs102 N·m
Same spec for every year 2015–2020.
  • ✓ Tighten in a star pattern, in two passes, with a torque wrench (not an impact gun)
  • ✓ Re-check the torque after the first 50–100 miles
  • ✓ Confirm against your owner’s manual; aftermarket wheels can differ

Source: TreadCompass vehicle fitment database. Page updated November 2026. Specs can vary with aftermarket wheels and lug hardware, so always confirm with your owner’s manual.

Factory tire sizes for the Alfa Romeo 4C

Compare prices across retailers for your size.

205/40R182015–2020 · Compare prices →205/45R172015–2020 · Compare prices →235/35R19 · rear2015–2020 · Compare prices →235/40R18 · rear2015–2020 · Compare prices →

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Alfa Romeo 4C lug nut torque FAQ

What is the lug nut torque for a Alfa Romeo 4C?

The 2015–2020 Alfa Romeo 4C lug nut torque is 75 ft-lbs (102 N·m). Tighten in a star pattern with a torque wrench, then re-check after the first 50–100 miles.

Do all 4C trims use the same lug nut torque?

Yes. Every 4C trim in our database uses the same lug nut torque for a given model year.

Has the Alfa Romeo 4C lug nut torque changed over the years?

No. It has been 75 ft-lbs (102 N·m) for every model year we have, 2015–2020.

What size tires come on the Alfa Romeo 4C?

Factory tire sizes include 205/40R18 (2015–2020), 205/45R17 (2015–2020), 235/35R19 (rear) (2015–2020) and 235/40R18 (rear) (2015–2020). Check the sidewall of your current tires to confirm yours, then compare prices for that size above.

New to torquing wheels? See how to torque lug nuts and common questions.