Vossen S21-13 Monoblock Forged Wheels — BMW 8 Series & M8 Fitment Guide
Vossen S21-13 — BMW 8 Series & M8 Fitment Guide
The Vossen S21-13 is a 1-piece forged monoblock from the Series 21 Collection — Vossen's modern high-performance forged platform. This page covers the fitment of the S21-13 specifically to the BMW 8 Series and M8 family: recommended sizes, bolt pattern, offset, and finish choices that work well on these cars.
For the full model overview, size catalogue, and order guide, see the Vossen S21-13 main product page.
BMW 8 Series & M8 — Compatibility
The S21-13 fits all current BMW 8 Series and M8 variants built on the G-platform:
- BMW 8 Series Coupé (G15) — 840i, 850i xDrive, M850i xDrive
- BMW 8 Series Gran Coupé (G16) — 840i Gran Coupé, 850i Gran Coupé, M850i Gran Coupé
- BMW 8 Series Cabriolet (G14) — 840i Cabriolet, M850i Cabriolet
- BMW M8 Coupé / Cabriolet / Gran Coupé (F91/F92/F93) — M8 Competition
All G14/G15/G16 variants share the same bolt pattern: 5×112, hub bore 66.5 mm. Vossen machines center bore to exact OEM specification as standard — no adapter rings required.
Recommended Fitment — 21"
- Front: 21×10, ET 25–35 — fills the arch on the M8 without rubbing on full lock
- Rear: 21×11, ET 20–30 — maximises stance on the wider rear track
- Bolt pattern: 5×112
- Hub bore: 66.5 mm (machined to spec, no spacer needed)
- TPM sensors: OEM BMW TPM sensors are compatible; Vossen valves accept standard 11.3 mm stems
Exact offset depends on your brake package and suspension setup. If you have M Sport brakes or aftermarket coilovers, send us your specs and we will confirm clearance before production.
About the Vossen S21-13
The S21-13 is forged from aerospace-grade 6061-T6 aluminum at Vossen's TÜV-verified facility in Miami. Each set is built to order — diameter, width, offset, PCD, and finish are part of the build sheet, not catalogue constraints. Back-pad pocketing on the inboard face removes material from non-structural areas, reducing unsprung mass while maintaining full structural compliance.
Available Sizes
- Diameters: 19" | 20" | 21" | 22" | 23" | 24"
- Widths: 8.5" – 13"
- Construction: 1-piece forged monoblock
- PCD: Any — 5×112 for BMW as standard
- Offset: Made to order
Finish Options
Vossen offers 48 custom finishes on the S21-13. Popular choices on the BMW 8 Series palette:
- Gloss Clear (transparent over forged grain) — highlights the forged texture, works with all factory BMW colours
- Midnight Smoke — dark graphite-tinted transparent, complements M8 Competition Black Sapphire and Frozen colours
- Patina Gold — warm iridescent, pairs well with BMW Frozen Marina Bay Blue and individual colours
- Matte Black — classic contrast finish for all 8 Series body colours
- Two-tone / custom match — Vossen can match factory BMW individual paint codes on request
How to Order
- Send your car details — model, year, brake package, suspension setup, and preferred finish to [email protected] or WhatsApp +44 7488 818747.
- We confirm your exact size, offset, and clearance within 24 hours — a Vossen specialist signs off on the build sheet.
- Invoice and 50% deposit — production starts once the deposit clears.
- Build lead time 6–10 weeks — each set is hand-finished in Miami; photos sent before crating.
- Worldwide delivery, fully insured — door-to-door with tracked courier.
Related Vossen Models for the BMW 8 Series
- Vossen S21-13 — full model overview
- Vossen S21-02 Monoblock — Series 21 twin-spoke alternative
- Vossen LC3-01 Monoblock — LC3 Series luxury forged option
- Browse all forged wheels at Hodoor World
