Guaranteed Fitment
Always the correct part
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At DMG Motorsports, we present the KOSO Piston/Ring Kit, part number 27-5801 / MD623000, as a replacement top-end component for compatible KOSO 170cc big bore applications. Built around a 61mm forged piston and piston rings, this kit is a practical choice for refreshing the piston assembly in select Honda Grom and Monkey-based builds.
Features:
| Vehicle | Year(s) |
|---|---|
| Honda MSX125 Grom | 2013–2021 |
| Honda MSX125A Grom ABS | 2018–2021 |
| Honda Z125 Monkey | 2019–2021 |
| Honda Z125A Monkey ABS | 2019–2021 |
Guaranteed Fitment
Always the correct part
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