186cc Big Bore Performance Kit w/ Oil Cooler - Honda Grom & MSX125 - TBW9154

186cc Big Bore Performance Kit w/ Oil Cooler Kit - TBW9154

Fits the 2014-2020 Honda Grom & MSX125
Fits 2019-2021 Honda Monkey 125

This is a brand new 186cc Big Bore Performance Kit from TB Parts who is the USA leader in performance big bore kits for the Honda 50cc, 70cc, 100cc, and 110cc models.
This is the largest bore kit on the market and is as big as you can go without having to bore your cases.
It includes the following parts: 

- An all aluminum ceramic plated 64mm cylinder. This cylinder is lighter than a steel sleeved aluminum cylinder, reduces friction (increasing power), improves sealing, and provides better heat transfer (runs and cools down quicker).
- High quality 64mm piston kit that include rings, wrist pin and clips.
- The pistons are CNC machined to exacting tolerances.
- Top end gasket kit
- High Performance Oil Cooler Kit w/ Mounting Hardware

These are high quality parts and definitely will dramatically increase the power and fun factor on your Grom! 

IMPORTANT NOTE:  Must be used with an aftermarket fuel controller to prevent a lean condition and damage to your engine