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/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.
4 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…