SPA Naoiri
SPA Naoiri is a 0.889mile (1.430 km) motorcycle racing circuit in 510-15 Ueda Kita Urahara, Taketa, Ōita Prefecture 878-0403, West Japan. The circuit is owned by Autopolis Co., Ltd. (part of Kawasaki Heavy Industries), which also operated the Autopolis racing track. References

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2012 establishments in Japan
Motorsport venues in Japan
Sports venues in Ōita Prefecture
Sports venues completed in 2012
Kawasaki Heavy Industries