Could be - although Shonan Bakusozaku’s author Yoshida Satoshi 吉田聡 also made the Rough Knight (荒くれKNIGHT) series (another biker gang manga situated in the Shonan region), which has Tankobons published with Akita Shoten (oh what a coincidence, same publisher as Haruka Reset)…so it could be a reference to that manga as well.