PISTON KIT YZF450 14-17 97.02, NAMURA NX-40048-C

Part No. 56-W4963.C.NT (phoenixmotos.com)
Yamaha WR450F 2016,
Yamaha YZ450F 2014 - 2016,
Yamaha YZ450FX 2016,
NAMURA PISTON KIT NX-40048 97.02mm