| Model | CB110 |
| Cylinder bore | φ50 |
| Excircle | φ54.5 |
| Headspace | 68.3 |
| Total length | 85.5 |
| Discharge volume | 109CM |
| Brand | KAINIU |



For owners of 110cc vehicles—especially daily commuter motorcycles or lightweight utility tricycles—reliable, efficient engine parts are the key to smooth, cost-effective operation. The CB110 Cylinder Head stands out as a specialized solution tailored to the unique needs of 110cc engines, where compact design, fuel efficiency, and durability take top priority. As a critical component of the cylinder assembly, it seals the cylinder’s top, houses essential parts like valves and spark plugs, and directly influences combustion efficiency, power output, and the engine’s overall lifespan. Whether you’re maintaining a CB110 motorcycle (or similar 110cc models) and need genuine-quality motorcycle parts, or upgrading a lightweight tricycle with compatible tricycle parts, the CB110 Cylinder Head delivers consistent performance that aligns with the demands of small-displacement engines.
Cylinder bore: φ50 mm – This compact bore size is perfectly matched to 110cc engine displacement, enabling precise piston movement and optimal fuel-air mixing within the cylinder. The 50mm diameter ensures efficient combustion, a must for small-displacement engines that rely on every drop of fuel to deliver adequate power for daily commuting or light hauling.
Excircle: φ54.5 mm – The outer diameter is designed for a snug fit with standard 110cc engine housings, ensuring structural stability while keeping the overall engine size compact. This compatibility eliminates the need for modifications, making it easy to integrate with existing motorcycle parts or tricycle parts setups.
Headspace: 68.3 mm – This streamlined headspace balances valve operation room with compression ratio optimization. It prevents unnecessary engine bulk while ensuring smooth gas flow, critical for maintaining fuel efficiency in 110cc engines that are often used for long daily commutes.
Total length: 85.5 mm – Its ultra-compact length is a game-changer for small-displacement vehicles, where engine bay space is limited. The 85.5mm design fits seamlessly into tight layouts, making it ideal for lightweight motorcycles and narrow-profile tricycles without sacrificing structural strength.
Discharge volume: 109CM – This displacement is nearly identical to the 110cc engine’s target output, ensuring the Cylinder Head works in perfect harmony with the engine’s overall design. The 109CM volume delivers consistent, low-end power—ideal for navigating city traffic or carrying light loads on residential streets.
These specifications aren’t just technical details; they represent engineering expertise focused on small-displacement efficiency, ensuring the CB110 Cylinder Head meets the highest standards for cylinder-related components in 110cc vehicles.
Motorcycle Compatibility: It’s designed as a direct replacement for CB110 motorcycles and fits most 110cc commuter bikes (e.g., Honda Wave 110, Yamaha YBR 110). Whether you’re repairing a trusted daily rider or upgrading an older model, the CB110 Cylinder Head integrates seamlessly with existing motorcycle parts to restore or enhance performance.
Tricycle Compatibility: For lightweight 110cc tricycles used for small-scale cargo transport (e.g., delivering groceries, carrying tools), the CB110 Cylinder Head is a compatible upgrade. It works with standard 110cc tricycle engine setups, making it a cost-effective choice for tricycle parts users seeking reliable performance.
Improved Fuel Efficiency: The φ50 mm cylinder bore and 109CM discharge volume optimize combustion, reducing fuel waste by up to 8% compared to worn or low-quality cylinder heads. For daily commuters, this translates to fewer trips to the gas station and significant long-term savings.
Smoother Low-End Power: Small-displacement engines rely on consistent low-end torque for city driving—and the CB110 Cylinder Head delivers just that. It ensures smooth acceleration from a stop, making it easier to navigate traffic or climb gentle hills without straining the engine.
Reduced Maintenance Needs: The precision seal and durable materials minimize wear on other engine parts (like piston rings and gaskets), reducing the frequency of repairs. For busy users who don’t have time for frequent maintenance, this means more time on the road and less time in the shop.
110cc-Specific Engineering: Its specifications (φ50 mm bore, 85.5mm length) are tailored to 110cc engines—unlike generic heads that may be too large, too small, or poorly calibrated for small-displacement performance.
Efficiency Focus: It’s designed to maximize fuel economy and low-end power, the two most important factors for 110cc users (commuters and small-scale haulers).
Cost-Effective Durability: While cheap engine parts fail quickly, the CB110 Cylinder Head’s quality materials and precision machining mean it lasts years—saving you money on frequent replacements.
| Model | CB110 |
| Cylinder bore | φ50 |
| Excircle | φ54.5 |
| Headspace | 68.3 |
| Total length | 85.5 |
| Discharge volume | 109CM |
| Brand | KAINIU |



For owners of 110cc vehicles—especially daily commuter motorcycles or lightweight utility tricycles—reliable, efficient engine parts are the key to smooth, cost-effective operation. The CB110 Cylinder Head stands out as a specialized solution tailored to the unique needs of 110cc engines, where compact design, fuel efficiency, and durability take top priority. As a critical component of the cylinder assembly, it seals the cylinder’s top, houses essential parts like valves and spark plugs, and directly influences combustion efficiency, power output, and the engine’s overall lifespan. Whether you’re maintaining a CB110 motorcycle (or similar 110cc models) and need genuine-quality motorcycle parts, or upgrading a lightweight tricycle with compatible tricycle parts, the CB110 Cylinder Head delivers consistent performance that aligns with the demands of small-displacement engines.
Cylinder bore: φ50 mm – This compact bore size is perfectly matched to 110cc engine displacement, enabling precise piston movement and optimal fuel-air mixing within the cylinder. The 50mm diameter ensures efficient combustion, a must for small-displacement engines that rely on every drop of fuel to deliver adequate power for daily commuting or light hauling.
Excircle: φ54.5 mm – The outer diameter is designed for a snug fit with standard 110cc engine housings, ensuring structural stability while keeping the overall engine size compact. This compatibility eliminates the need for modifications, making it easy to integrate with existing motorcycle parts or tricycle parts setups.
Headspace: 68.3 mm – This streamlined headspace balances valve operation room with compression ratio optimization. It prevents unnecessary engine bulk while ensuring smooth gas flow, critical for maintaining fuel efficiency in 110cc engines that are often used for long daily commutes.
Total length: 85.5 mm – Its ultra-compact length is a game-changer for small-displacement vehicles, where engine bay space is limited. The 85.5mm design fits seamlessly into tight layouts, making it ideal for lightweight motorcycles and narrow-profile tricycles without sacrificing structural strength.
Discharge volume: 109CM – This displacement is nearly identical to the 110cc engine’s target output, ensuring the Cylinder Head works in perfect harmony with the engine’s overall design. The 109CM volume delivers consistent, low-end power—ideal for navigating city traffic or carrying light loads on residential streets.
These specifications aren’t just technical details; they represent engineering expertise focused on small-displacement efficiency, ensuring the CB110 Cylinder Head meets the highest standards for cylinder-related components in 110cc vehicles.
Motorcycle Compatibility: It’s designed as a direct replacement for CB110 motorcycles and fits most 110cc commuter bikes (e.g., Honda Wave 110, Yamaha YBR 110). Whether you’re repairing a trusted daily rider or upgrading an older model, the CB110 Cylinder Head integrates seamlessly with existing motorcycle parts to restore or enhance performance.
Tricycle Compatibility: For lightweight 110cc tricycles used for small-scale cargo transport (e.g., delivering groceries, carrying tools), the CB110 Cylinder Head is a compatible upgrade. It works with standard 110cc tricycle engine setups, making it a cost-effective choice for tricycle parts users seeking reliable performance.
Improved Fuel Efficiency: The φ50 mm cylinder bore and 109CM discharge volume optimize combustion, reducing fuel waste by up to 8% compared to worn or low-quality cylinder heads. For daily commuters, this translates to fewer trips to the gas station and significant long-term savings.
Smoother Low-End Power: Small-displacement engines rely on consistent low-end torque for city driving—and the CB110 Cylinder Head delivers just that. It ensures smooth acceleration from a stop, making it easier to navigate traffic or climb gentle hills without straining the engine.
Reduced Maintenance Needs: The precision seal and durable materials minimize wear on other engine parts (like piston rings and gaskets), reducing the frequency of repairs. For busy users who don’t have time for frequent maintenance, this means more time on the road and less time in the shop.
110cc-Specific Engineering: Its specifications (φ50 mm bore, 85.5mm length) are tailored to 110cc engines—unlike generic heads that may be too large, too small, or poorly calibrated for small-displacement performance.
Efficiency Focus: It’s designed to maximize fuel economy and low-end power, the two most important factors for 110cc users (commuters and small-scale haulers).
Cost-Effective Durability: While cheap engine parts fail quickly, the CB110 Cylinder Head’s quality materials and precision machining mean it lasts years—saving you money on frequent replacements.