Koso 170cc Big Bore + 4 Valve + Cam + All Extras (Complete)2014-2021 Honda Grom & 2019-2021 Honda Monkey 125

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About Koso 170cc Big Bore + 4 Valve + Cam + All Extras (Complete)2014-2021 Honda Grom & 2019-2021 Honda Monkey 125
​Want arm stretching power for your Honda Grom? We're pulling a solid 20hp w/ this all inclusive set-up. We've packaged all the hard to source supporting items, such as Koso 34m throttle body, PCX 150 injector, and the correct spark plug into one package for you. Hold on tight!   CJR ECU or similar highly recommended for proper fueling.
Reviews

3 reviews for Koso 170cc Big Bore + 4 Valve + Cam + All Extras (Complete)2014-2021 Honda Grom & 2019-2021 Honda Monkey 125

  • nema741

    Perfect upgrade on the grom! Absolutely love this on mine!

  • clint (verified owner)

    Looks great, just needs one sharp edge around combustion chamber smoothed out & installed.

  • Ryan

    Will this fit a 2022 monkey?

    • kevin estep

      No. As listed, it’s for the 19-21. Different engine.


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