Detonation! Violent Riders Blu-ray Hits July 21 from 88 Films

Detonation! Violent Riders arrives on Blu-ray from British distributor 88 Films on July 21, 2025. Directed by Teruo Ishii and featuring Sonny Chiba, Kōichi Iwaki, Junko Matsudaira, and Tomoko Ai, this 1975 cult biker movie presents a violent rivalry between the Red Roses and Black Cats biker gangs.

The story follows motorbike mechanic Iwaki, whose racing ambitions are interrupted by gang politics and complicated romances, including his interest in Michiko, who is caught between her overprotective brother Tsugami (Sonny Chiba) and gang leader Mitsuda’s possessive plans.

This release includes a Blu-ray presentation in 2.35:1 aspect ratio with original Japanese mono audio and new English subtitles. The disc also features an audio commentary from Ashley Darrow and Jonathan Greenaway of the Horror Vanguard Podcast, a new video essay by Nathan Stuart, a stills gallery, and the original trailer. Packaging includes an exclusive numbered obi slip limited to 4000 copies and a booklet with notes by Michelle Kisner.

Technical specs list the region as AB with a runtime of 86 minutes. The Blu-ray carries original and newly commissioned artwork by Ilan Sheady, emphasizing this edition's appeal to collectors and fans of cult Japanese cinema.

88 Films continues to support its catalogue with strong genre titles, making this release noteworthy for fans of gritty, exploitation biker films and the work of Teruo Ishii.

Release Contents:

• Audio Commentary By Ashley Darrow And Jonathan Greenaway: Discussions from the Horror Vanguard Podcast team.
• New Video Essay by Nathan Stuart: Contextual exploration of the film.
• Stills Gallery: Collection of film stills.
• Trailer: Original promotional material.
• Booklet Notes by Michelle Kisner: Written insights included.
• Original and Newly Commissioned Artwork by Ilan Sheady: Visual presentation elements.

Release Date: July 21, 2025.