2021 BMW 4 Series Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 2021 BMW 4 Series, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 5x112 |
|---|---|
| Lug Nut / Bolt Size | 14x1.25 |
| Center Bore (CB) | 66.6 mm |
| Offset (ET) | 25-40 |
| Torque Specs | 100 ft-lbs (135 Nm) |
2021 4 Series — Year-Specific Fitment Context
The 2021 BMW 4 Series is in year 3 of 6 using the 5x112 pattern (2019–2024). Wheels from any 2019–2024 BMW 4 Series are cross-compatible with the 2021 model. Across its full production run (2014–2024), the 4 Series has also used: 5x120.
BMW 4 Series Bolt Pattern by Year
The table below shows how the 4 Series's wheel specifications have changed over the years. The 2021 model year is highlighted.
5x112 Pattern Context
This bolt pattern appears on 1490 vehicles in our current database and is considered common.
Examples of other vehicles using 5x112:
Expert Buying Guide for 2021 BMW 4 Series
For your 2021 BMW 4 Series, the correct bolt pattern is 5x112 with a center bore of 66.6mm. Aftermarket wheels often have a larger bore, so hub-centric rings are essential to prevent vibrations and ensure proper load transfer. The offset range is 25-40mm; staying within this range maintains steering geometry and prevents rubbing. Always use lug nuts with the correct thread pitch (14x1.25) and seat type—BMW typically uses ball seats, but aftermarket wheels may require conical or flat seats. Mismatched lug nuts can cause wheel loosening or damage. Verify compatibility with your specific model (e.g., M Sport vs. standard) as brake caliper clearance may vary.
Historical Fitment Data Reference
In our dataset, BMW 4 Series appears from 2014 to 2024 (11 model years). Across model years, this model appears with 2 bolt patterns (5x112, 5x120).
- Observed bolt-pattern variants for this model: 2
- Observed center-bore variants for this model: 2
- Observed lug-size variants for this model: 1
- Observed total offset span across years: 70.0 mm
Quick Tips & Safety Warnings
- ✅ Re-torque lug nuts after 50-100 miles of driving to ensure proper seating.
- ✅ If using aftermarket wheels, confirm hub-centric rings are installed to avoid vibrations.
- ✅ Check brake caliper clearance when using wheels with offset near 25mm, as aggressive fitments may contact calipers.
- ⚠️ Confirm bolt pattern carefully. 5x112 is often confused with other common 5-lug patterns.
- ⚠️ This fitment uses a wide offset range. Check brake clearance and fender clearance before buying wheels.
- ⚠️ Torque lugs in a star pattern to 100 ft-lbs (135 Nm), then re-check torque after 50-100 km (30-60 miles).
- ⚠️ This model has multiple bolt-pattern records across years. Match wheels to exact year/trim before purchase.
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2021 BMW 4 Series — Frequently Asked Questions
What is the bolt pattern for a 2021 BMW 4 Series?
The 2021 BMW 4 Series uses a 5x112 bolt pattern (also called lug pattern or PCD). The center bore is 66.6mm and the offset is 25-40mm.
What other years of BMW 4 Series have the same bolt pattern as the 2021?
The BMW 4 Series uses the 5x112 pattern from 2019 through 2024. Wheels from any of these model years are dimensionally compatible with the 2021, provided the offset and center bore also match.
What is the PCD for a 2021 BMW 4 Series?
PCD stands for Pitch Circle Diameter, which is the same as the bolt pattern. For the 2021 4 Series, the PCD is 5x112.
Will wheels from another BMW fit my 2021 4 Series?
Only if they share the exact same 5x112 bolt pattern, a compatible offset, and a center bore equal to or larger than 66.6mm.
What is the factory wheel offset for a 2021 BMW 4 Series?
The OEM offset for the 2021 4 Series is typically around 25-40mm. Depending on wheel width, a deviation of ±5mm is usually acceptable, but verify suspension clearance.
Do 2021 BMW 4 Seriess use lug bolts or lug nuts?
The 2021 4 Series requires 14x1.25 hardware. Check your specific trim to ensure you use the correct conical or spherical seating.
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