O.S. Speed 21 XZ-B Spec.II Gold Edition engine

To celebrate the 80th anniversary of their company, Japanese nitro engine makers O.S. have introduced the Speed 21 XZ-B Spec.II Gold Edition engine. Based on the standard Spec.II the limited edition engine features a gold-anodised cooling head with black-colour lettering. Limited to 100 pieces World-wide the Gold Edition engine is available separately or including a Japan-made EFRA 2042 T-2060SC pipe.

Source: O.S. Engines [os-engines.co.jp]