Set of 4 JR Wheels JR34 wheels for BMW 4 Series Cabrio 2021-2024
Product details
JR Wheels JR34 wheels for BMW 4 Series Cabrio 2021-2024 — 8 sizes, 5 finishes
The JR Wheels JR34 are offered here in a set of 4 wheels for BMW 4 Series Cabrio 2021-2024, in 18" · 19" · 20" and in 5 finishes. PCD 5x112, direct fitting. Made in Flow Forming, they are lighter and stronger than a conventional cast wheel.
Fitment of JR Wheels JR34 wheels on the BMW 4 Series Cabrio 2021-2024
Versions compatible with this size
BMW 4 Series Cabrio 2021-2024Why choose JR Wheels JR34 wheels for your BMW 4 Series Cabrio 2021-2024?
- Flow Forming construction: up to 30% lighter than a conventional cast wheel — responsiveness, range and comfort all benefit
- Wheel nuts and centring rings included: the 4 centring rings matched to your car and the wheel nuts are supplied with the set — nothing else to order
- 5 finishes: Gloss Black · Platinum Bronze · Hyper Black · Silver Machined Face · Silver Machined
- 8 approved sizes, PCD 5x112: direct fitting, no spacer
- Sold as a set of 4, each wheel individually wrapped and protected
Flow Forming construction for greater performance
This method produces a wheel that is lighter and stronger than a conventional cast wheel, which improves the car's responsiveness, road holding and driving comfort, while keeping excellent durability for everyday use.
In practice, the barrel of the wheel is heated, then stretched by rollers after casting. The metal becomes denser, which allows material to be removed at equal strength: the weight saving reaches up to 30% compared with a cast aluminium model.
| Sizes available for your BMW 4 Series Cabrio 2021-2024 | |
|---|---|
| 18x8 ET42 | BMW 4 Series Cabrio 2021-2024 |
| 19x8.5 ET35 | BMW 4 Series Cabrio 2021-2024 |
| 19x8.5 ET40 | BMW 4 Series Cabrio 2021-2024 |
| 19x9.5 ET35 | BMW 4 Series Cabrio 2021-2024 |
| 19x9.5 ET40 | BMW 4 Series Cabrio 2021-2024 |
| 20x9 ET35 | BMW 4 Series Cabrio 2021-2024 |
| 20x9 ET40 | BMW 4 Series Cabrio 2021-2024 |
| 20x10 ET40 | BMW 4 Series Cabrio 2021-2024 |
| Approval by size | |
|---|---|
| 18x8 ET42 | JWL / VIA no TÜV report for this size |
| 19x8.5 ET35 | TÜV certified See the certificate (PDF) |
| 19x8.5 ET40 | JWL / VIA no TÜV report for this size |
| 19x9.5 ET35 | TÜV certified See the certificate (PDF) |
| 19x9.5 ET40 | TÜV certified See the certificate (PDF) |
| 20x9 ET35 | JWL / VIA no TÜV report for this size |
| 20x9 ET40 | JWL / VIA no TÜV report for this size |
| 20x10 ET40 | JWL / VIA no TÜV report for this size |
| Technical specifications of JR Wheels JR34 wheels | |
|---|---|
| Brand / model | JR Wheels JR34 |
| Manufacturing process | Flow Forming |
| Material | Light aluminium alloy |
| Diameters | 18" · 19" · 20" |
| Sizes | 18x8 ET42 19x8.5 ET35 19x8.5 ET40 19x9.5 ET35 19x9.5 ET40 20x9 ET35 20x9 ET40 20x10 ET40 |
| PCD | 5x112 mm |
| Centre bore | 66.6 mm — 18x8 ET42 · 19x8.5 ET35 · 19x8.5 ET40 · 19x9.5 ET40 · 20x9 ET35 · 20x9 ET40 · 20x10 ET40 74.1 mm — 19x8.5 ET35 · 19x8.5 ET40 · 19x9.5 ET35 · 19x9.5 ET40 |
| Colour | Gloss Black · Platinum Bronze · Hyper Black · Silver Machined Face · Silver Machined |
| Fixing hardware | Wheel nuts included |
| Centring | 4 centring rings matched to your car included |
| Certifications | JWL / VIA |
| Packaging | Set of 4 wheels |
| Shipping | Shipped separately from the rest of the order |
Certifications and compliance
These wheels are certified to JWL and VIA, which guarantee the wheel's structural strength to Japanese standards. 3 of the 8 sizes offered also have a TÜV report: the matching certificate can be downloaded from the “Approval by size” table above. The other sizes are covered by the JWL / VIA certifications only.
Fitting: what to allow for
The set is delivered complete: the 4 centring rings matched to your car and the wheel nuts are included, with no extra part to order. Allow 30 to 45 minutes for all four wheels with a jack and a torque wrench. Follow the torque specified in your vehicle manual and retighten the fixings after the first few kilometres.
Tyre fitting should be entrusted to a properly equipped workshop, with balance checked after fitting.
Delivery and packaging
Each wheel is individually packed, protected on both faces and fully wrapped in film. This product ships separately from the rest of your order.
| The different manufacturing methods | |||||
|---|---|---|---|---|---|
| Process | Method | Weight | Strength | Price | Balancing |
| Casting | Aluminium cast in a mould | ★★☆☆☆ | ★★☆☆☆ | ★★★★★ | ★★☆☆☆ |
| Flow Forming JR34 | Cast aluminium, then heated and stretched by machine | ★★★★☆ | ★★★☆☆ | ★★☆☆☆ | ★★★☆☆ |
| Hybrid Forged | Casting followed by a forging stage (Concaver process) | ★★★★☆ | ★★★★☆ | ★★★☆☆ | ★★★★☆ |
| Semi Forged | Front face machined from solid + barrel in Casting | ★★★★★ | ★★★★☆ | ★★☆☆☆ | ★★★★☆ |
| Forged | Wheel fully machined from solid | ★★★★★ | ★★★★★ | ★☆☆☆☆ | ★★★★★ |
Frequently asked questions
What is a Flow Forming wheel?
A Flow Forming wheel is cast in a mould, then its barrel is heated and stretched by rollers. This process densifies the metal structure: at equal strength, material can be removed, giving a weight saving of up to 30% compared with a conventional cast wheel.
What size should I choose for my BMW 4 Series Cabrio 2021-2024?
The size table above shows, for each size, the compatible versions and years. Select the size matching your vehicle from the drop-down menu, then the finish.
Do I need to order wheel nuts, centring rings or spacers?
No. The wheel nuts and the 4 centring rings matched to your car are included in the set.
Are the tyres and tyre pressure sensors included?
No, this set includes only the 4 wheels.
General
- Brand JAPAN RACING
- Reference JR3418805L4266GB
Specific references
- ean13: 5902211950738
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