Set of 4 JR Wheels JR21 wheels for BMW 4 Series Cabrio 2021-2024

JR Wheels JR21 wheels for BMW 4 Series Cabrio 2021-2024 — 18 sizes, 8 finishes

The JR Wheels JR21 are offered here in a set of 4 wheels for BMW 4 Series Cabrio 2021-2024, in 18" · 19" · 20" and in 8 finishes. PCD 5x112, direct fitting. Made in Flow Forming, they are lighter and stronger than a conventional cast wheel.

Why choose JR Wheels JR21 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
• 8 finishes: Gloss Black · Matt Bronze · Hyper Gray · Silver Machined · Silver Machined Face · Frozen Gold · Matt Black · Platinum Red
• 18 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.

Certifications and compliance

These wheels are certified to JWL and VIA, which guarantee the wheel's structural strength to Japanese standards. 9 of the 18 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.

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.