High Compression Stock Bore Piston for the 2022+ Honda Grom / Monkey

The DH Motoring Stock Bore Racing Piston (2022+ Grom / Monkey) "We've now produced the first high compression stock bore piston for the new 2022 Grom/Monkey. We took our development experience from the previous generation Grom and CRF110 and applied it to the all new Grom engine and have come up with a lightweight, high compression piston that still utilizes the OEM 12mm pin size.  ~13:1 compression 50mm stock bore piston Larger ring and skirt oiling holes than other pistons on the market Larger oil spring to increase oil volume between the oiling rings OEM sized skirt area to maintain reliability Racing piston ring kit with pins and circlips Valve reliefs that clear valves up to 27/22 cylinder head valves Includes a new base gasket and head gasket NGK CR9E spark plug recommended  Requires at least 91 octane fuel Requires ECU Flash or other Engine Management (aRacer, etc) Increasing the compression ratio on the stock bore significantly increases the throttle response an