MOS : YAMAHA CYGNUS X/BWS-125 Roller [Y-PR-5TY-A00]
59mm 170cc Racing Big Bore Cylinder & Head Kit & Variator Roller Drive Kit for YAMAHA BWS ZUMA 125 YW125 CYGNUS X / SR / FI 4V|big bore cylinder|big borekit 125 - AliExpress
MARMITTA SPORT TURBO KIT gmax 4t per YAMAHA CYGNUS X FLAME X 125 Roller | eBay
2015 Yamaha Cygnus X Specs Images and Pricing
125cc Cylinder & Head Kit & Variator Roller Drive Kit for YAMAHA BWS ZUMA 125 YW125 CYGNUS X 4V 52.4mm|Engine Cooling & Accessories| - AliExpress