The principle of 20 spokes : History of the ALPINA wheel design
20" Alpina Classic Forged CS20 wheels in Silver "Lacquer 03" - Alloy Wheels Direct (7236816)
BMW ALPINA GB on X: "@MarketEng 20-spoke @ALPINA_GmbH wheel has to be a contender. This is latest 25% lighter forged design at Frankfurt with exposed valve and bolts. https://t.co/ty8kmYLFBU" / X