Tsubaki Line

Tsubaki Line (椿ライン) is by the nearby Toyo Turnpike. It is the home course of Sidewinder. Ryosuke's battle with Rin Hojo was held there. The uphill battle (between Go Hojo and Keisuke Takahashi) and the downhill one (between Takumi Fujiwara and Shinji Inui) happened here.