Answers use only the current dossier and general verification principles
This dossier records 1KB-12405-00-00 as a genuine OE number. Verify the applicable market and version.
Current evidence points to Yamaha YZFR1BB (YZFR1) 1KBB 2012, Yamaha YZFR1BCB (YZFR1 CA) 1KBC 2012, Yamaha YZFR1BCGP (YZFR1 WORLD GP 50TH ANNIVERSARY ED CA) 1KBM 2012. Verify the year, market and engine version against the original vehicle information.
Check the part number, model year, sales market, engine version, installation position and critical dimensions. The core parameters are recorded, but compare the physical old part before installation.
There is currently no evidence-confirmed genuine replacement relationship, so direct replacement cannot be concluded.
The same model may use different numbers and specifications across years, markets, engines or trim versions; verify the complete vehicle environment.
The current parameter template has values for every field. More images, exploded diagrams and cross-brand relationships can still be added.