Hi
I am in the UK - this is an official Yamaha bracket
Here is a link if your interested. In the UK it is priced at £47.60:
Tracer 900 GT - Motorcycles - Yamaha Motor
WWW.YAMAHA-MOTOR.EU
The official product page of the Tracer 900 GT. The page contains the technical specs, media for download and an overview of related accessories.