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Precision Honing: Optimized cylinder walls for reduced friction and improved ring seating
These are the same metal signs given to Genuine dealers when they sign up
Don't forget to order rims
All five components are hand-selected to work together as a tuned system
If the engine code includes "QM" or "FM" and uses an AC-based CDI system
NCY Ring Set (50mm); Dio/DD50 Big Bore Kit 88 Precision Honing: Optimized cylinder wallsThe NCY 50mm Piston Ring Set is a direct fit replacement for the Honda Dio and Sym DD50 running a 50mm big bore cylinder kit, providing the correct ring dimensions and tension to maintain proper compression and oil control in an overbored engine. This NCY ring set is matched to the 50mm bore specification to ensure a proper seal against the cylinder wall from the first start. Designed for Honda Dio and Sym DD50 with 50mm big bore cylinder kits