SILVER SURFER: Yamaha SR400 by Purpose Built Moto. - Pipeburn,BIKES: After 43 years, it's the end of the road for the,ヤマハSR400の43年間グラフィック図鑑【このバイクに注目,BIKES: After 43 years, it's the end of the road for the,SILVER SURFER: Yamaha SR400 by Purpose Built Moto. - Pipeburn