Kitaco 88cc Light Big Bore Kit with Aluminum Cylinder (Part No. 214-1015420)
This kit is compatible with the following Honda models:
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Dax 70 (ST70) – Not import models
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Chaly 70 (CF70): CF70-2000003～2999999
It is a Light Big Bore Kit specifically designed for use with the stock cylinder head on these models. The kit provides everything needed to upgrade a standard Honda 72cc engine to 88cc and includes a quality aluminum cylinder with cast iron sleeve.
This 88cc Light Big Bore Kit from Kitaco delivers a significant yet usable power and torque increase across the RPM range while maintaining good street manners and reliability for everyday riding.
Kit Contents & Performance Features
The kit features an optimized cylinder head with improved combustion chamber, efficient port shapes, larger valves, and a high-compression cast piston. These upgrades enhance airflow and combustion efficiency for better overall performance compared to stock.
Note: Kitaco High Camshaft (300-1013000) is recommended for smoother power delivery. Ultra / Ultra-SE camshafts are not compatible.
Key specifications:
- Displacement: 88cc
- Bore: φ52mm
- Stroke: 41.4mm (uses stock crankshaft)
- High-compression cast piston
- Designed for stock cylinder head
Cylinder Construction: Aluminum with Cast Iron Sleeve
This version uses Kitaco’s standard aluminum cylinder with a cast iron sleeve. This proven design offers excellent durability and value for performance upgrades.
Benefits of the Aluminum + Cast Iron Sleeve Cylinder:
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Reliable durability: The cast iron sleeve provides a hard, wear-resistant bore surface that stands up well to piston ring movement, delivering solid long-term performance in a big bore setup.
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Effective heat management: The aluminum outer body promotes good heat dissipation while the iron sleeve ensures strength and thermal stability under load.
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Proven and cost-effective: This traditional sleeved construction has a strong track record in Honda Dax/Chaly engines, making it ideal for riders wanting meaningful power gains without the premium price of the hard chrome version.
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Lightweight advantage: The aluminum design keeps overall weight in check compared to fully cast iron cylinders.
This Light Big Bore Kit is an excellent choice for Dax 70 and Chaly 70 owners seeking a straightforward, reliable power upgrade that works with the original cylinder head. It offers strong low-to-mid range torque for practical street use while allowing for further enhancements with recommended supporting parts.
For best results, we recommend using high-quality engine oil, proper carburetor jetting, and following correct break-in procedures. Professional installation is advised, and always confirm compatibility with your specific model and year.
