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

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Price
$1,069.00
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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/Monkey?  We've packaged all the hard to source supporting items, such as Koso 34m throttle body, fuel injector, and the correct spark plug into one package for you. Hold on tight!   MNNTHBX Mtake will not work without a custom adapter.   Either a aRacer tuner or DHM ecu flash is required.
Reviews

5 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.

  • David Fullington

    Does this need an oil cooler in the system? Is one provided? Recommended?

    • kevin estep

      Not all application will require it, but many will. It depends on the usage and environment…

  • David Fullington (verified owner)

    I bought the 170 complete kit for my 2021 Monkey and ended up selling the Monkey and buying a 2024. This kit is still in the box never used. Is there no way to utilize this on my new Monkey? I wanted the 5 speed to allow me to rev the engine less when going fast due to the 5th gear. What can I do to get some value out of my 170 kit and get more performance out of my new Monkey?


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