https://www.yamaha-motor.eu/ie/en/accessories/accessories-overview/pdp/gb-racing-generator-alternator-cover-for-r1-2015-gbr-c0vr1-10-00/
GB Racing Generator Alternator Cover for R1 2015 - Accessories - Yamaha Motor
GB Racing engine protection in case of crash or bike drop.
gb racingalternator covergenerator