| Model | CBF150 |
| Cylinder bore | φ57.3 |
| Excircle | φ72 |
| Headspace | 62.3 |
| Total length | 90 |
| Discharge volume | 149CM |
| Brand | KAINIU |


For owners of 150cc vehicles—whether daily commuter motorcycles, versatile light off-road bikes, or utility tricycles—finding engine parts that balance power, efficiency, and durability is crucial. The CBF150 Cylinder Head stands out as a tailored solution designed to meet the unique needs of 150cc engines, where enhanced performance (for highway stretches or light hauling) and long-term reliability take priority. As a core component of the cylinder assembly, it seals the cylinder’s top, houses key parts like valves and spark plugs, and directly impacts combustion efficiency, torque output, and the engine’s overall lifespan. Whether you’re maintaining a CBF150 motorcycle (or similar 150cc models) and need high-quality motorcycle parts, or upgrading a 150cc utility tricycle with compatible tricycle parts, the CBF150 Cylinder Head delivers consistent performance that aligns with the diverse use cases of 150cc vehicles.
Cylinder bore: φ57.3 mm – This precisely sized bore is perfectly matched to 150cc engine displacement, enabling smooth piston movement and optimal fuel-air mixing within the cylinder. The 57.3mm diameter strikes a balance between power and efficiency: it provides ample combustion space for responsive acceleration (ideal for merging into highway traffic or climbing steep hills) while keeping fuel consumption in check for daily commutes.
Excircle: φ72 mm – The outer diameter is designed for a secure fit with standard 150cc engine housings, ensuring structural stability while accommodating the larger components of 150cc engines (compared to smaller 125cc models). This compatibility eliminates the need for modifications, making it easy to integrate with existing motorcycle parts or tricycle parts setups.
Headspace: 62.3 mm – This streamlined headspace is engineered to optimize the compression ratio for 150cc engines. It provides just enough room for valve operation while enhancing combustion pressure—critical for delivering consistent low-end torque (for city driving) and robust mid-range power (for highway cruising or light off-roading).
Total length: 90 mm – Its compact 90mm length is tailored to 150cc engine bays, which need to balance space for performance components with overall vehicle weight. The design fits seamlessly into both sleek commuter motorcycles and sturdier utility tricycles, without sacrificing structural strength or adding unnecessary bulk.
Discharge volume: 149CM – This displacement is nearly identical to the 150cc engine’s target output, ensuring the Cylinder Head works in perfect harmony with the engine’s overall design. The 149CM volume delivers reliable power: it’s strong enough for carrying moderate loads (on tricycles) or navigating long highway stretches (on motorcycles) while maintaining excellent fuel efficiency.
These specifications aren’t just technical details; they represent engineering expertise focused on 150cc performance, ensuring the CBF150 Cylinder Head meets the highest standards for cylinder-related components in 150cc vehicles.
Motorcycle Compatibility: It’s designed as a direct replacement for CBF150 motorcycles and fits most 150cc commuter, touring, and light off-road bikes (e.g., Honda CB150R, Yamaha YBR150). Whether you’re repairing a trusted daily rider or upgrading an older model to restore performance, the CBF150 Cylinder Head integrates seamlessly with existing motorcycle parts.
Tricycle Compatibility: For 150cc utility tricycles used for small-to-moderate cargo transport (e.g., delivering groceries, carrying construction tools), the CBF150 Cylinder Head is a compatible upgrade. It works with standard 150cc tricycle engine setups, providing the extra durability and power needed for hauling moderate loads—making it a cost-effective choice for tricycle parts users.
This compatibility ensures that no matter your 150cc vehicle type, the CBF150 Cylinder Head is a plug-and-play solution that works in harmony with your existing engine parts.
150cc-Specific Engineering: Its specifications (φ57.3 mm bore, 62.3mm headspace) are tailored to 150cc engines—unlike generic heads that may be calibrated for smaller or larger displacements, leading to poor performance or premature wear.
Versatility for Diverse Use Cases: It’s designed to perform well in city commutes, highway cruising, and light off-road/utility tasks, making it a one-stop solution for 150cc vehicle owners who use their vehicles for multiple purposes.
Long-Term Value: While cheap engine parts may seem affordable upfront, they often fail quickly—costing you more in replacements and downtime. The CBF150 Cylinder Head’s premium materials and precision machining mean it lasts for years, delivering better value over time.
150cc-Specific Engineering: Its specifications (φ57.3 mm bore, 62.3mm headspace) are tailored to 150cc engines—unlike generic heads that may be calibrated for smaller or larger displacements, leading to poor performance or premature wear.
Versatility for Diverse Use Cases: It’s designed to perform well in city commutes, highway cruising, and light off-road/utility tasks, making it a one-stop solution for 150cc vehicle owners who use their vehicles for multiple purposes.
Long-Term Value: While cheap engine parts may seem affordable upfront, they often fail quickly—costing you more in replacements and downtime. The CBF150 Cylinder Head’s premium materials and precision machining mean it lasts for years, delivering better value over time.
| Model | CBF150 |
| Cylinder bore | φ57.3 |
| Excircle | φ72 |
| Headspace | 62.3 |
| Total length | 90 |
| Discharge volume | 149CM |
| Brand | KAINIU |


For owners of 150cc vehicles—whether daily commuter motorcycles, versatile light off-road bikes, or utility tricycles—finding engine parts that balance power, efficiency, and durability is crucial. The CBF150 Cylinder Head stands out as a tailored solution designed to meet the unique needs of 150cc engines, where enhanced performance (for highway stretches or light hauling) and long-term reliability take priority. As a core component of the cylinder assembly, it seals the cylinder’s top, houses key parts like valves and spark plugs, and directly impacts combustion efficiency, torque output, and the engine’s overall lifespan. Whether you’re maintaining a CBF150 motorcycle (or similar 150cc models) and need high-quality motorcycle parts, or upgrading a 150cc utility tricycle with compatible tricycle parts, the CBF150 Cylinder Head delivers consistent performance that aligns with the diverse use cases of 150cc vehicles.
Cylinder bore: φ57.3 mm – This precisely sized bore is perfectly matched to 150cc engine displacement, enabling smooth piston movement and optimal fuel-air mixing within the cylinder. The 57.3mm diameter strikes a balance between power and efficiency: it provides ample combustion space for responsive acceleration (ideal for merging into highway traffic or climbing steep hills) while keeping fuel consumption in check for daily commutes.
Excircle: φ72 mm – The outer diameter is designed for a secure fit with standard 150cc engine housings, ensuring structural stability while accommodating the larger components of 150cc engines (compared to smaller 125cc models). This compatibility eliminates the need for modifications, making it easy to integrate with existing motorcycle parts or tricycle parts setups.
Headspace: 62.3 mm – This streamlined headspace is engineered to optimize the compression ratio for 150cc engines. It provides just enough room for valve operation while enhancing combustion pressure—critical for delivering consistent low-end torque (for city driving) and robust mid-range power (for highway cruising or light off-roading).
Total length: 90 mm – Its compact 90mm length is tailored to 150cc engine bays, which need to balance space for performance components with overall vehicle weight. The design fits seamlessly into both sleek commuter motorcycles and sturdier utility tricycles, without sacrificing structural strength or adding unnecessary bulk.
Discharge volume: 149CM – This displacement is nearly identical to the 150cc engine’s target output, ensuring the Cylinder Head works in perfect harmony with the engine’s overall design. The 149CM volume delivers reliable power: it’s strong enough for carrying moderate loads (on tricycles) or navigating long highway stretches (on motorcycles) while maintaining excellent fuel efficiency.
These specifications aren’t just technical details; they represent engineering expertise focused on 150cc performance, ensuring the CBF150 Cylinder Head meets the highest standards for cylinder-related components in 150cc vehicles.
Motorcycle Compatibility: It’s designed as a direct replacement for CBF150 motorcycles and fits most 150cc commuter, touring, and light off-road bikes (e.g., Honda CB150R, Yamaha YBR150). Whether you’re repairing a trusted daily rider or upgrading an older model to restore performance, the CBF150 Cylinder Head integrates seamlessly with existing motorcycle parts.
Tricycle Compatibility: For 150cc utility tricycles used for small-to-moderate cargo transport (e.g., delivering groceries, carrying construction tools), the CBF150 Cylinder Head is a compatible upgrade. It works with standard 150cc tricycle engine setups, providing the extra durability and power needed for hauling moderate loads—making it a cost-effective choice for tricycle parts users.
This compatibility ensures that no matter your 150cc vehicle type, the CBF150 Cylinder Head is a plug-and-play solution that works in harmony with your existing engine parts.
150cc-Specific Engineering: Its specifications (φ57.3 mm bore, 62.3mm headspace) are tailored to 150cc engines—unlike generic heads that may be calibrated for smaller or larger displacements, leading to poor performance or premature wear.
Versatility for Diverse Use Cases: It’s designed to perform well in city commutes, highway cruising, and light off-road/utility tasks, making it a one-stop solution for 150cc vehicle owners who use their vehicles for multiple purposes.
Long-Term Value: While cheap engine parts may seem affordable upfront, they often fail quickly—costing you more in replacements and downtime. The CBF150 Cylinder Head’s premium materials and precision machining mean it lasts for years, delivering better value over time.
150cc-Specific Engineering: Its specifications (φ57.3 mm bore, 62.3mm headspace) are tailored to 150cc engines—unlike generic heads that may be calibrated for smaller or larger displacements, leading to poor performance or premature wear.
Versatility for Diverse Use Cases: It’s designed to perform well in city commutes, highway cruising, and light off-road/utility tasks, making it a one-stop solution for 150cc vehicle owners who use their vehicles for multiple purposes.
Long-Term Value: While cheap engine parts may seem affordable upfront, they often fail quickly—costing you more in replacements and downtime. The CBF150 Cylinder Head’s premium materials and precision machining mean it lasts for years, delivering better value over time.