KOSO 4 Valve Big Bore Piston and Rings Only Honda Grom 125 - 170cc & 61mm
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KOSO 4 Valve Big Bore Piston and Rings Only Honda Grom 125 - 170cc & 61mm

$180.00
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KOSO 4 Valve Big Bore Piston and Rings ONLY Honda Grom 125 (Cylinder is NOT included)Replacement 4 Valve Piston and Rings for the KOSO 170cc 61mm bore. No cylinder is included. - Honda Grom 125Professional installation is highly recommended! Engine break-in, aftermarket fuel controller and special tune/autotune is required! Likewise with any major engine modification or bore up kits, it's now considered a high-performance race engine, extra attention and steps are needed to maintain a high-performance engine.Disclaimer: NO WARRANTY ON RACE ENGINES parts or engine bore up kits. There is no warranty stated or implied due to the unusual stresses placed on these parts and because we have no control over how they are installed and used. Steady Garage will not be held liable for any failure or damage caused directly or indirectly from use of these products or engine. The installation and use of these products or engine shall be conclusive evidence that the user assumes full responsibili

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