Electric vehicles carry their heaviest component — the battery — below the floor. That low centre of gravity is an engineering advantage, but it also means the suspension has to manage significant total mass while controlling the wheels at each corner. Lighter wheels reduce the ratio of unsprung mass to sprung mass, which improves how the suspension absorbs impacts, how quickly the car changes direction, and how effectively the regenerative braking system recovers energy. On the EV9, switching from factory cast wheels to forged monoblock rims is one of the simplest ways to improve both efficiency and ride refinement simultaneously.
The Bete Noire Ver1.3 features aero-optimised spokes — wider, flatter surfaces designed to smooth airflow across the wheel face and reduce aerodynamic drag at highway speeds. The design language aligns with the EV9's angular, modern aesthetic. The spokes transition from narrow at the hub to wider at the rim lip, creating a fan-like geometry that looks purposeful and contemporary. In gloss black, the Ver1.3 gives the EV9 a stealthier, more assertive appearance. In brushed titanium, the flat spoke surfaces become reflective elements that add visual texture to the car's clean sides.
| Bolt pattern | 5x114.3 |
| Recommended diameter | 21" |
| Width range | 8.5J — 9.5J (square setup) |
| Offset range | ET35 — ET48 |
| Centre bore | 67.1 mm |
| Material | 6061-T6 forged aluminium |
| Weight | ~30% lighter than equivalent cast wheel |
The aero-spoke design is not purely cosmetic. At highway speeds, wheel aerodynamics contribute measurably to total vehicle drag. Flat, broad spokes create less turbulence than thin, deep-set ones — a consideration that matters more on an EV where aerodynamic efficiency directly translates to range. For material comparisons, see our forged vs cast technical guide.
The Ver1.3 was created through Hodoor's AI wheel design service. The algorithm generates thousands of original designs daily, each structurally validated and checked for CNC manufacturability. The design stage costs nothing — you pay only when a concept enters production.
For clients who want something entirely bespoke, our designer works from hand sketches or references. The manufacturing process remains the same: single-billet CNC machining, balancing, and delivery in four to eight weeks.
Does the aero-spoke design reduce range loss compared to open-spoke wheels?
Yes. Broad, flat spokes reduce aerodynamic turbulence around the wheel and brake area. The improvement is modest — perhaps 1-2% at sustained highway speeds — but on an EV, every percentage point of efficiency counts. Combined with the weight saving, the total range benefit is meaningful.
Will these handle the EV9's 2,600 kg kerb weight safely?
Yes. Forged 6061-T6 aluminium has a higher load rating per unit of material than cast aluminium. These wheels are engineered to exceed the EV9's rated axle loads with a comfortable safety margin. Read more in our wheel sizing and load guide.
Can I use these with winter tyres?
You can, though many EV owners keep a separate set of smaller winter wheels (19-inch) for better cold-weather range and pothole resistance. If you do run the 21-inch forged set year-round, the 6061-T6 aluminium handles temperature extremes well.
Explore other EV-optimised designs in the AI wheels collection. For deeper technical reading, see our guide to forged wheel and tyre upgrades.
To order or discuss a custom specification, email [email protected] with your EV9 details.
