In December 2022, Japanese performance parts and accessories maker Kitaco introduced two big bore kits for the Honda CT125 Hunter Cub. Enthusiasts looking to upgrade could choose between a 164cc or a 181cc kit, each including a cast aluminum cylinder, piston, piston rings, gaskets, I-map injection controller, oil cooler, and basically everything you would need to complete the conversion.
That’s cool if you have a CT125 that you want to upgrade, but what if you have a different Honda 125? Say, a Monkey or a Grom? Fret not, friends, because as of August 2023, Kitaco has you covered as well. The company offers a range of bore-up kits for the Monkey and the Grom (or MSX 125), depending on your budget and what you want to accomplish.
