 |
| Quantity: | |
|---|---|
| Model | F120-D |
| Cylinder bore | φ52.4 |
| Excircle | φ56.3 |
| Headspace | 78.2 |
| Total length | 96.5 |
| Discharge volume | 125CM/127CM |
| Brand | KAINIU |
In the competitive realm of engine parts, the cylinder head is the "combustion mastermind" that dictates power and efficiency—and the Cylinder Head F120-D emerges as a specialized solution for 125cc and 127cc 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 performance across two closely matched displacement ranges. Unlike generic Cylinder Head options that force compromises between similar engine sizes, the F120-D is calibrated to adapt seamlessly to 125CM and 127CM discharge volumes, making it a top choice for mechanics servicing 125cc-class fleets and vehicle owners upgrading 125/127cc motorcycles or utility tricycles. Whether you’re repairing a highway-capable commuter bike, a heavy-duty cargo tricycle, or a mid-performance off-road motorcycle, the Cylinder Head F120-D balances precision, durability, and targeted compatibility—essential for maximizing the potential of 125cc/127cc engines.
Model: F120-D – Purpose-built for 125cc/127cc engines, eliminating the need for separate Cylinder Head options for these closely matched displacements and simplifying parts inventory.
Cylinder Bore: φ52.4 – A precisely machined 52.4mm bore that creates the ideal compression space for both 125CM and 127CM discharge volumes. This uniform diameter maximizes air-fuel mixture efficiency, avoiding power loss common with ill-sized cylinder bores in engines with near-identical displacements.
Excircle: φ56.3 – A 56.3mm 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 high-vibration motorcycles (e.g., off-road models) and heavy-load tricycles (e.g., commercial 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 rugged rural terrain.
Total Length: 96.5 – A 96.5mm total length that fits seamlessly into 125cc-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: 125CM/127CM – Unique dual-displacement compatibility that adapts to 125cc (mainstream commuters) and 127cc (high-performance variants) engine requirements. This flexibility reduces inventory costs for parts suppliers and eliminates the risk of mispurchasing for vehicle owners with these closely sized engines
125cc/127cc engines generate significant heat due to their higher power output compared to smaller displacements. The Cylinder Head F120-D addresses this with a precision-machined ribbed surface that increases heat dissipation by 20% compared to standard Cylinder Head options. The ribbed design expands the part’s surface area, allowing heat to escape faster and keeping the engine cool during prolonged use—whether you’re navigating busy highways on a motorcycle or making heavy-load deliveries on a tricycle. This feature prevents performance degradation (e.g., power loss from overheating) and extends the life of adjacent engine parts like pistons, valves, and gaskets.
Dual-Displacement Precision: Adapts perfectly to 125CM and 127CM discharge volumes, eliminating the need for separate parts and reducing inventory complexity.
Targeted Compatibility: Fits most 125cc/127cc motorcycles and tricycles, simplifying repairs and upgrades for mechanics and vehicle owners.
Durable, High-Performance Design: High-grade aluminum alloy, advanced heat management, and rigorous testing ensure it withstands demanding use—lowering long-term maintenance costs.
| Model | F120-D |
| Cylinder bore | φ52.4 |
| Excircle | φ56.3 |
| Headspace | 78.2 |
| Total length | 96.5 |
| Discharge volume | 125CM/127CM |
| Brand | KAINIU |
In the competitive realm of engine parts, the cylinder head is the "combustion mastermind" that dictates power and efficiency—and the Cylinder Head F120-D emerges as a specialized solution for 125cc and 127cc 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 performance across two closely matched displacement ranges. Unlike generic Cylinder Head options that force compromises between similar engine sizes, the F120-D is calibrated to adapt seamlessly to 125CM and 127CM discharge volumes, making it a top choice for mechanics servicing 125cc-class fleets and vehicle owners upgrading 125/127cc motorcycles or utility tricycles. Whether you’re repairing a highway-capable commuter bike, a heavy-duty cargo tricycle, or a mid-performance off-road motorcycle, the Cylinder Head F120-D balances precision, durability, and targeted compatibility—essential for maximizing the potential of 125cc/127cc engines.
Model: F120-D – Purpose-built for 125cc/127cc engines, eliminating the need for separate Cylinder Head options for these closely matched displacements and simplifying parts inventory.
Cylinder Bore: φ52.4 – A precisely machined 52.4mm bore that creates the ideal compression space for both 125CM and 127CM discharge volumes. This uniform diameter maximizes air-fuel mixture efficiency, avoiding power loss common with ill-sized cylinder bores in engines with near-identical displacements.
Excircle: φ56.3 – A 56.3mm 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 high-vibration motorcycles (e.g., off-road models) and heavy-load tricycles (e.g., commercial 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 rugged rural terrain.
Total Length: 96.5 – A 96.5mm total length that fits seamlessly into 125cc-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: 125CM/127CM – Unique dual-displacement compatibility that adapts to 125cc (mainstream commuters) and 127cc (high-performance variants) engine requirements. This flexibility reduces inventory costs for parts suppliers and eliminates the risk of mispurchasing for vehicle owners with these closely sized engines
125cc/127cc engines generate significant heat due to their higher power output compared to smaller displacements. The Cylinder Head F120-D addresses this with a precision-machined ribbed surface that increases heat dissipation by 20% compared to standard Cylinder Head options. The ribbed design expands the part’s surface area, allowing heat to escape faster and keeping the engine cool during prolonged use—whether you’re navigating busy highways on a motorcycle or making heavy-load deliveries on a tricycle. This feature prevents performance degradation (e.g., power loss from overheating) and extends the life of adjacent engine parts like pistons, valves, and gaskets.
Dual-Displacement Precision: Adapts perfectly to 125CM and 127CM discharge volumes, eliminating the need for separate parts and reducing inventory complexity.
Targeted Compatibility: Fits most 125cc/127cc motorcycles and tricycles, simplifying repairs and upgrades for mechanics and vehicle owners.
Durable, High-Performance Design: High-grade aluminum alloy, advanced heat management, and rigorous testing ensure it withstands demanding use—lowering long-term maintenance costs.
