MB623002 Big Bore Kit 170cc Hon
MB623002 Big Bore Kit 170cc Hon
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MB623002 Big Bore Kit 170cc Hon
If you’re ready to take your Honda GROM to the next level, look no further than the Koso 170cc Big Bore Kit. This powerful upgrade is engineered to unleash the maximum performance your bike can handle, ensuring an exhilarating riding experience.
Key Features:
- Ceramic Coated Aluminum Cylinder: Designed with a 61mm bore, this cylinder enhances heat resistance and durability.
- High Compression Ratio: With an impressive 11.5:1 compression ratio, expect improved power and efficiency.
- Forged Piston/Ring Kit: Crafted for premium fuel, this piston/ring kit maximizes performance and reliability.
- Complete Installation Package: Comes with a top end gasket kit and banjo bolts for a hassle-free installation.
- Race Use Only: Please note that this kit is not legal for use in California on pollution-controlled vehicles; a waiver is available for racing purposes.
Elevate your ride with the MB623002 Big Bore Kit 170cc Hon and experience the thrill of enhanced power and performance on your Honda GROM.
Shipping & Returns
Shipping & Returns
📦 Shipping:
Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days, depending on your location.
↩️ Returns:
You may return or exchange products within 60 days of receiving your order. Items must be in original condition with proof of purchase. If your item is defective or damaged due to manufacturing issues, we’ll replace it at no additional cost.

