The BMW iX i20 carries a 111.5 kWh battery, weighs well over two tonnes, and produces 523 hp from its dual electric motors. That is a lot of energy managed by four contact patches, and the mass sitting between those contact patches and the suspension -- the unsprung mass -- determines how well the car rides, grips, and preserves range. Factory wheels on the iX are large and heavy. Replacing them with forged alternatives can save four to five kilograms per corner, directly improving efficiency and handling response.
The Bete Noire Ver1.9 is a flow-line design featuring organic, flowing spokes that mimic the aerodynamic surfaces of the car they are designed for. Rather than straight lines, the spokes follow gentle curves that reduce turbulent airflow behind the wheel. It was created through Hodoor's AI wheel design programme, which generates thousands of unique wheel concepts daily, each one engineered for manufacturability as a forged monoblock. The result is a wheel that looks like it was drawn by hand but is backed by computational analysis of spoke stress distribution, brake clearance, and aerodynamic efficiency.
| Bolt pattern | 5x112 |
| Recommended diameter | 21" or 22" |
| Width range | 9.5J front / 10.5J rear |
| Offset range | ET25 - ET40 |
| Centre bore | 66.6 mm |
| Material | 6061-T6 forged aluminium |
| Weight | ~30% lighter than equivalent cast wheel |
On an EV like the BMW iX i20, the weight saving from forged wheels has a compounding effect. Lighter rotating mass means the electric motors draw less energy per kilometre, the regenerative braking system recovers energy more efficiently, and the suspension has less unsprung weight to control over imperfections. If you are considering an upgrade from the factory cast wheels, our forged vs cast wheels comparison explains the engineering differences in detail.
The Bete Noire Ver1.9 is part of Hodoor's AI-driven design pipeline. The system produces over 1,000 unique wheel concepts per day, each one validated for structural integrity and manufacturability as a CNC-machined forged monoblock. You are not selecting from a fixed catalogue -- the AI generates designs calibrated to a specific car's dimensions, brake clearances, and visual proportions. The design phase is free. You only commit financially when a concept moves into production.
If the AI-generated options do not match your vision, our in-house designer can work from sketches or reference images. Both routes lead to the same 6061-T6 billet, the same precision CNC machining, the same balancing and inspection process, and the same four-to-eight-week production timeline.
Do these wheels affect the BMW iX's range estimate on the dashboard?
The dashboard range estimate recalibrates over time. After fitting lighter forged wheels, most iX owners report the displayed range increasing by 10-25 km after a few charging cycles, reflecting the reduced energy consumption from lower unsprung mass.
Will these clear the iX's optional M Sport brakes?
Yes. Both 21" and 22" diameters are designed with sufficient caliper clearance for the M Sport brake package, including the blue-painted calipers.
Are aerodynamic wheel covers compatible with these rims?
No. The iX's factory aero covers are designed for the specific spoke pattern of the OEM wheels. However, the flow-line spoke design of this wheel is itself aerodynamically optimised, minimising the efficiency trade-off. More on wheel efficiency in our wheel size guide.
. Read more about BMW iX custom wide body kit. For other AI-designed wheel options, see the full AI wheels collection.
To order or request a custom variation, email [email protected] with your car details.
