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1-819-342-5291 / Info@secretimport.com
9:00 a.m. to 6:00 p.m. (Mon.-Fri.) / 10:00 a.m. to 4:00 p.m. (Sat.)
1-819-342-5291 / Info@secretimport.com
9:00 a.m. to 6:00 p.m. (Mon.-Fri.) / 10:00 a.m. to 4:00 p.m. (Sat.)The NCY 16/42 secondary gear kit is designed to modify the final drive ratio of GY6 50cc 139QMB / 139QMA engines.
With its 16/42 ratio, it optimizes the transmission's behavior according to your engine setup, particularly for Big Bore or performance setups.
Performance gains:
Common terms:
gear up kit, secondary gears, final drive gears, transmission gear set.
