2021 BMW i3 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 i3, 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 i3 — Year-Specific Fitment Context
The 2021 model year is the final year of the BMW i3's 5x112 bolt pattern run (since 2014). Wheels from any 2014–2021 BMW i3 are cross-compatible with the 2021 model.
BMW i3 Bolt Pattern by Year
The table below shows how the i3's wheel specifications have changed over the years. The 2021 model year is highlighted.
| Year | Bolt Pattern | Center Bore | Offset |
|---|---|---|---|
| 2014 | 5x112 | 66.7 | 43 (The car has thin wheels!) |
| 2015 | 5x112 | 66.7 | 43 (The car has thin wheels!) |
| 2016 | 5x112 | 66.7 | 43 (The car has thin wheels!) |
| 2017 | 5x112 | 66.7 | 43 (The car has thin wheels!) |
| 2018 | 5x112 | 66.7 | 43 (The car has thin wheels!) |
| 2019 | 5x112 | 66.6 | 25-40 |
| ▸ 2021 | 5x112 | 66.6 | 25-40 |
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 i3
For your 2021 BMW i3, the bolt pattern is 5x112 with a 66.6mm center bore. When selecting aftermarket wheels, hub-centric rings are essential to match this bore precisely, preventing vibrations and ensuring proper load distribution. The offset range is 25-40mm; staying within this range maintains suspension geometry and clearance. A critical safety note: use lug nuts with the correct thread pitch (14x1.25) and seat type—either conical (60-degree) or ball seat, as specified by the wheel manufacturer. Mixing seat types can cause wheel loosening. Always verify that aftermarket wheels are compatible with the i3's TPMS sensors and brake calipers.
Historical Fitment Data Reference
In our dataset, BMW i3 appears from 2014 to 2021 (7 model years). Across recorded model years, this model generally keeps the same bolt pattern.
- Observed bolt-pattern variants for this model: 1
- Observed center-bore variants for this model: 2
- Observed lug-size variants for this model: 2
- Observed total offset span across years: 83.0 mm
Quick Tips & Safety Warnings
- ✅ Re-torque lug nuts after 50-100 miles of driving to ensure proper seating.
- ✅ Avoid using wheels with a center bore larger than 66.6mm without hub-centric rings; vibrations may occur.
- ✅ Check that aftermarket wheels clear the i3's brake calipers, as some designs may interfere.
- ⚠️ 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).
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2021 BMW i3 — Frequently Asked Questions
What is the bolt pattern for a 2021 BMW i3?
The 2021 BMW i3 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 i3 have the same bolt pattern as the 2021?
The BMW i3 uses the 5x112 pattern from 2014 through 2021. Wheels from any of these model years are dimensionally compatible with the 2021, provided the offset and center bore also match.
What is the factory wheel offset for a 2021 BMW i3?
The OEM offset for the 2021 i3 is typically around 25-40mm. Depending on wheel width, a deviation of ±5mm is usually acceptable, but verify suspension clearance.
What lug nut size does the 2021 BMW i3 use?
The 2021 BMW i3 uses 14x1.25 lug nuts. Always verify the thread pitch and seat type (cone, ball, or flat) match your aftermarket wheels.
Do 2021 BMW i3s use lug bolts or lug nuts?
The 2021 i3 requires 14x1.25 hardware. Check your specific trim to ensure you use the correct conical or spherical seating.
What is the center bore of a 2021 BMW i3?
The factory center bore (hub bore) for the 2021 BMW i3 is 66.6mm. If your aftermarket wheels have a larger hub bore, you will need hub-centric rings to prevent vibration.
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