| Model | F110 |
| Cylinder bore | φ50 |
| Excircle | φ54.5 |
| Headspace | 78.2 |
| Total length | 96.5 |
| Discharge volume | 109CM |
| Brand | KAINIU |



Introduction:
In the competitive world of engine parts, the cylinder head is the "combustion powerhouse"—and the Cylinder Head F110 stands as a dedicated solution for 109cc systems. Engineered to excel as both motorcycle parts and tricycle parts, this component seals the combustion chamber, regulates airflow, and manages heat to deliver consistent power tailored specifically to 109cc engines. Unlike generic Cylinder Head options that lack displacement-specific tuning, the F110 is calibrated to match the 109CM discharge volume, making it a top choice for mechanics servicing 110cc-class fleets and vehicle owners upgrading 109cc motorcycles or utility tricycles. Whether you’re repairing a compact commuter bike, a light-duty cargo tricycle, or a rural utility vehicle, the Cylinder Head F110 balances precision, durability, and targeted compatibility—essential for meeting the unique demands of 109cc engines.
Model: F110 – Purpose-built for 109cc engines, with a design that eliminates the guesswork of generic parts and delivers displacement-specific performance.
Cylinder Bore: φ50 – A precisely machined 50mm bore that creates the ideal compression space for 109CM discharge volume. This uniform diameter maximizes air-fuel mixture efficiency, avoiding power loss common with ill-sized cylinder bores in small-displacement engines.
Excircle: φ54.5 – A 54.5mm outer diameter that forms a tight, leak-proof seal with cylinder blocks and gaskets. This tolerance prevents compression drops and oil leaks—critical for maintaining engine health in vibration-prone motorcycles (e.g., city scooters) and load-bearing tricycles (e.g., food delivery vehicles).
Headspace: 78.2 – A 78.2mm clearance between the Cylinder Head and piston, engineered to prevent mechanical interference while accommodating thermal expansion. This gap protects internal parts from damage, even during prolonged use in stop-and-go urban traffic or rough rural terrain.
Total Length: 96.5 – A 96.5mm total length that fits seamlessly into 110cc-class engine bays, avoiding interference with surrounding motorcycle parts or tricycle parts. Its compact yet robust structure ensures easy installation without drilling, welding, or custom modifications—saving time for mechanics and DIY users.
Discharge Volume: 109CM – Calibrated exclusively for 109cc engines, this displacement-specific design ensures the cylinder head works in perfect harmony with the engine’s airflow and fuel intake systems, delivering consistent power and efficiency.
109cc-Specific Tuning: Calibrated exclusively for 109CM discharge volume, delivering optimized performance that generic parts can’t match.
Broad Compatibility: Fits most 109cc motorcycles and tricycles, simplifying repairs and upgrades for mechanics and vehicle owners.
Durable, Efficient Design: High-grade aluminum alloy, advanced heat management, and rigorous testing ensure it withstands daily use and harsh conditions—lowering maintenance costs over time.
| Model | F110 |
| Cylinder bore | φ50 |
| Excircle | φ54.5 |
| Headspace | 78.2 |
| Total length | 96.5 |
| Discharge volume | 109CM |
| Brand | KAINIU |



Introduction:
In the competitive world of engine parts, the cylinder head is the "combustion powerhouse"—and the Cylinder Head F110 stands as a dedicated solution for 109cc systems. Engineered to excel as both motorcycle parts and tricycle parts, this component seals the combustion chamber, regulates airflow, and manages heat to deliver consistent power tailored specifically to 109cc engines. Unlike generic Cylinder Head options that lack displacement-specific tuning, the F110 is calibrated to match the 109CM discharge volume, making it a top choice for mechanics servicing 110cc-class fleets and vehicle owners upgrading 109cc motorcycles or utility tricycles. Whether you’re repairing a compact commuter bike, a light-duty cargo tricycle, or a rural utility vehicle, the Cylinder Head F110 balances precision, durability, and targeted compatibility—essential for meeting the unique demands of 109cc engines.
Model: F110 – Purpose-built for 109cc engines, with a design that eliminates the guesswork of generic parts and delivers displacement-specific performance.
Cylinder Bore: φ50 – A precisely machined 50mm bore that creates the ideal compression space for 109CM discharge volume. This uniform diameter maximizes air-fuel mixture efficiency, avoiding power loss common with ill-sized cylinder bores in small-displacement engines.
Excircle: φ54.5 – A 54.5mm outer diameter that forms a tight, leak-proof seal with cylinder blocks and gaskets. This tolerance prevents compression drops and oil leaks—critical for maintaining engine health in vibration-prone motorcycles (e.g., city scooters) and load-bearing tricycles (e.g., food delivery vehicles).
Headspace: 78.2 – A 78.2mm clearance between the Cylinder Head and piston, engineered to prevent mechanical interference while accommodating thermal expansion. This gap protects internal parts from damage, even during prolonged use in stop-and-go urban traffic or rough rural terrain.
Total Length: 96.5 – A 96.5mm total length that fits seamlessly into 110cc-class engine bays, avoiding interference with surrounding motorcycle parts or tricycle parts. Its compact yet robust structure ensures easy installation without drilling, welding, or custom modifications—saving time for mechanics and DIY users.
Discharge Volume: 109CM – Calibrated exclusively for 109cc engines, this displacement-specific design ensures the cylinder head works in perfect harmony with the engine’s airflow and fuel intake systems, delivering consistent power and efficiency.
109cc-Specific Tuning: Calibrated exclusively for 109CM discharge volume, delivering optimized performance that generic parts can’t match.
Broad Compatibility: Fits most 109cc motorcycles and tricycles, simplifying repairs and upgrades for mechanics and vehicle owners.
Durable, Efficient Design: High-grade aluminum alloy, advanced heat management, and rigorous testing ensure it withstands daily use and harsh conditions—lowering maintenance costs over time.