The AL 13 R300-109RD pairs AL 13's R Series spoke architecture with the AERO-109R deep barrel profile and the exclusive 109RD dark smoked transparent finish. Manufactured from 6061-T6 aerospace-grade forged aluminum at the Brea, California facility, the R300-109RD is CNC-machined to a run-out standard of 0.007 inch and built to order in any combination of diameter (13"–24"), width (5J–14.5J), offset, and bolt pattern. The base AL 13 R300 is also available without the 109R barrel in 1-piece, 2-piece, and 3-piece configurations.
Hodoor's AI Wheel Design Service can visualise the R300-109RD in your chosen finish before you order. Contact [email protected] for a response within 24 hours.
The AERO-109R programme represents AL 13's most technically demanding barrel geometry. The deep inner barrel extends significantly further than a standard rim, creating an aerodynamically optimised channel that reduces turbulent airflow in the wheel arch. At speed, this translates to a measurable reduction in aerodynamic drag, while visually the deep dish adds dimension and concavity that enhances the presence of any large-diameter fitment. All AERO-109R models are available in 1-piece monoblock, 2-piece, and 3-piece configurations — the barrel geometry is consistent across all three; only the structural assembly method differs.
The 109RD designation specifies the dark smoked transparent finish applied to the AERO-109R deep barrel, adding a stealth aesthetic that complements both light and dark vehicle colours. The smoked transparent coating is applied after the final polishing stage, over the fully machined and polished barrel surface. The result is a semi-translucent dark layer that allows the underlying metal grain and machining marks to show through, giving the wheel a depth that changes appearance under different lighting conditions. The 109RD finish is fully compatible with all spoke colour options available in the AL 13 catalogue, and can be matched to OEM or custom vehicle colours on request.
Every AL 13 AERO-109R wheel is available in three construction variants. The 1-piece monoblock is forged as a single unit — the spoke face and barrel are machined from a single billet, eliminating any assembly joints and producing the stiffest possible structure. The 2-piece variant uses a separately forged face bolted to a spun or forged barrel; this allows greater diameter and offset flexibility and enables mixed finish combinations across face and barrel. The 3-piece variant adds a separate outer barrel lip, providing the maximum step-lip depth and the widest range of offset configurations. All three variants are manufactured to the same 0.007" run-out standard.
Each AL 13 wheel passes through multiple CNC machining operations before finishing. Spoke profiles are roughed and finished on high-speed vertical mills, with tool paths optimised for the combined geometry of the spoke face and AERO-109R barrel. The barrel interior and outer lip are lathe-turned to dimensional tolerances tighter than SAE J2530 and TÜV LH 04 requirements. After machining, every wheel is balanced dynamically and checked on a certified run-out gauge before proceeding to the finishing stage. Wheels that do not meet the 0.010" maximum run-out limit are returned to the machine room — not passed for finishing.
| Model | Barrel | Finish | Construction | Sizes |
|---|---|---|---|---|
| R300 (base) | Standard | All finishes | 1 / 2 / 3-Piece | 13"–24" |
| R300-109R | AERO-109R deep | All finishes | 1 / 2 / 3-Piece | 13"–24" |
| R300-109RD | AERO-109R deep | 109RD dark smoked | 1 / 2 / 3-Piece | 13"–24" |
The AL 13 R300-109RD is built to order — bolt pattern, offset, and brake clearance are specified at time of purchase, not constraints to manage after:
Email [email protected] with your make, model, year, and brake package — fitment confirmation and detailed quote within 24 hours.
The AL 13 R300-109RD is manufactured to any PCD to match your vehicle exactly. Standard bolt patterns available include 5×112 (BMW M-series, Mercedes-AMG, Audi RS, Volkswagen), 5×114.3 (Nissan GT-R, Lexus RC F / LC 500, Toyota GR Supra), 5×120 (BMW standard platform, Land Rover Defender/Discovery), 5×130 (Porsche 911, Cayenne, Panamera), 5×108 (Ford GT, Jaguar, Volvo), and 5×150 (Toyota Land Cruiser, Lexus GX/LX). Center-lock configurations are available on request for McLaren, Ferrari, and Lamborghini supercar applications. Contact [email protected] with your bolt pattern, center bore, and offset requirements.
AL 13 operates a fully bespoke custom wheel programme through its Brea, California facility. If the R300-109RD is not quite right — wrong spoke count, different barrel depth requirement, or a completely custom spoke design — AL 13 will engineer a wheel from a new forging. Visit hodoor.world/page/custom-wheels-manufacturing to start the conversation, or contact [email protected] directly. Phone: +44 7488 818747.
What is the difference between the R300-109R and the R300-109RD?
The R300-109R uses the AERO-109R deep barrel with any finish from the AL 13 catalogue. The R300-109RD specifies the dark smoked transparent finish on that same barrel — the structural geometry is identical, only the barrel surface treatment differs.
Can I order the R300-109RD in a custom diameter not listed?
Yes. AL 13 manufactures to any diameter from 13" to 24" plus extended sizes on request. Any diameter, width, and offset combination can be quoted — contact [email protected] with your requirements.
How long does production take?
Lead time is confirmed at order and depends on the specific configuration and current production queue. Typical lead times range from 8 to 14 weeks. AL 13 provides pre-shipping photos before your wheels are crated, so you can inspect them before dispatch.
Is the AERO-109R barrel available in other finishes besides 109RD?
Yes. The 109RD finish (dark smoked transparent) is one option. The same AERO-109R barrel geometry is also available in Polished, Brushed, and any custom painted finish. The 109R designation (without the D) refers to the barrel profile without the dark smoked specification.
The AL 13 R300-109RD ships regularly to all major performance-car markets. In Western Europe the strongest demand comes from the Netherlands, Switzerland, and the United Kingdom. In the Gulf, the UAE and Saudi Arabia are consistent markets for hand-finished forged hardware. Mediterranean deliveries cover Cyprus, Turkey, and Greece. Every shipment leaves Hodoor with full export documentation and tracked, insured logistics — and direct factory liaison between you and AL 13's California build team.
