Amazon.com: Denso 234-4490 Oxygen Sensor : Automotive。Riding in Japan with F650GS and F750GS。Putting the gs through its capabilities this bike amazes me。Riding in Japan with F650GS and F750GS。2*300+2*250+2*120+2*150+4*100+2*200+1350+2*150+9*15+3*150+8*100+547+750=6772円