NCY 139QMB Performance Cylinder Head 81cc 50mm 152qmi grab-and-go storage system with the

grab-and-go storage system with the Prima Underseat Storage Bag

Remaining gaskets and o-rings fit both Series A and Series B engines

Exhaust Lobe at its Greatest: 25

allowing for faster revving and higher top-end potential

50-10 / 100/90-10 cross-fitment KYMCO Agility 50/125 (10" wheel)

NCY 139QMB Performance Cylinder Head 81cc 50mm 152qmi grab-and-go storage system with theThe NCY 81cc Aluminum Performance Cylinder Head is a direct upgrade for 50cc 139QMB based engines. Pair it with NCY's 81cc Cylinder Kit to push past stock displacement and gain the power needed for city traffic and hills. Made in Taiwan. ISO 9001 certified. NCY has been the aftermarket performance leader for popular scooter platforms since 1997. Key Features 81cc alloy performance cylinder head for 139QMB GY6 50cc engines 50mm stud spacing direct fit