Kouki Takahashi (高橋江紀, Takahashi Kōki; 3 September 1987 – 24 April 2011) was a Japanese professional motorcycle racer. He competed in Grand Prix motorcycle racing as a wildcard entrant in three Japanese Grand Prix (2005, 2006 & 2010). He died on Sunday April 24, 2011 following a road traffic accident in Saitama, Japan. He was the younger brother of former Moto2 race winner, Yuki Takahashi.
Source: “Kouki Takahashi”, English Wikipedia (CC BY-SA 4.0), excerpt