In the category of Engines and Engine Parts > Cylinders and Cylinder heads > Cylinder Head. Big Valve Cylinder Head 152QMI with EGR Port for WY125T-121, WY125T-108 CYLH033. Order Before 4PM For Same Day Dispatch. Lexmoto: FMX 125 WY125T-108, Vienna 125 WY125T-121. Inlet Valve Size: TBCmm. Valve Train Layout: SOHC. Contact Ordering & Dispatch. Our Opening hours are 9:00 – 17:00 Monday – Friday, excluding Bank Holidays. Please note that collection is NOT available.