On Ronnie Wood's radio show on November 14, 2011, both Wood and Alice Cooper claim that Wood played bass guitar on the studio recording of the song that was released as a single and appeared on the album The Crazy World of Arthur Brown, but Polly Marshall's biography of Arthur Brown states that "[Wood] must have confused it with the BBC session [on April 8, 1968]." There is no bass guitar on "Fire", only bass pedals.
Ronnie Wood and Alice Cooper both claim that Wood played bass on the studio recording of "Fire," while Polly Marshall's biography states that Wood may have mistaken it for a different session, specifically one from April 8, 1968. The song itself lacks a traditional bass guitar but relies solely on bass pedals.