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  • New Arrival 4 Valve Cylinder Head with Rocker Arm Camshaft for BWS125 MIO 19/21mm 21/23mm
  • New Arrival 4 Valve Cylinder Head with Rocker Arm Camshaft for BWS125 MIO 19/21mm 21/23mm
  • New Arrival 4 Valve Cylinder Head with Rocker Arm Camshaft for BWS125 MIO 19/21mm 21/23mm
  • New Arrival 4 Valve Cylinder Head with Rocker Arm Camshaft for BWS125 MIO 19/21mm 21/23mm
  • New Arrival 4 Valve Cylinder Head with Rocker Arm Camshaft for BWS125 MIO 19/21mm 21/23mm
  • New Arrival 4 Valve Cylinder Head with Rocker Arm Camshaft for BWS125 MIO 19/21mm 21/23mm
New Arrival 4 Valve Cylinder Head with Rocker Arm Camshaft for BWS125 MIO 19/21mm 21/23mm

New Arrival 4 Valve Cylinder Head with Rocker Arm Camshaft for BWS125 MIO 19/21mm 21/23mm

  • 12 - 119 Pieces
    $107
  • 120 - 479 Pieces
    $100
  • >= 480 Pieces
    $92

Customization:

Customized logo（Min.Order: 1000 pieces）
Customized packaging（Min.Order: 1000 pieces）
View product details

New Arrival 4 Valve Cylinder Head with Rocker Arm Camshaft for BWS125 MIO 19/21mm 21/23mm

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • 4-Valve Design: Enhances airflow and combustion efficiency for improved engine performance in high-stress environments.
  • Integrated Camshaft and Rocker Arm System: Ensures precise valve timing and smooth operation for reliable power delivery.
  • Robust Construction: Built with durable iron (as specified) and optimized heat dissipation features for longevity under extreme temperatures.

Key features

  • 1. Durable Iron Construction for Enhanced Longevity

    • With a robust iron body, this cylinder head ensures exceptional durability under high-stress engine conditions, outlasting traditional aluminum components in heavy-duty scenarios*.

  • 2. 4-Valve Configuration for Superior Performance

    • With a 4-valve design, you can achieve improved airflow and combustion efficiency, delivering higher power output compared to standard 2-valve cylinder heads*.

  • 3. Precision-Engineered Compatibility for BWS125 MIO Engines

    • Designed specifically for BWS125 MIO motorcycles (19/21mm and 21/23mm specifications), this cylinder head ensures seamless integration and optimal performance tailored to your engine’s requirements.

  • 4. Adaptable Design for Custom Engine Configurations

    • With customizable valve sizes and mounting options, this cylinder head can be adjusted to accommodate diverse engine setups, enhancing versatility for both standard and modified applications.

  • 5. Optimized Heat Dissipation for Reliable Operation

    • Featuring a design optimized for efficient heat dissipation, this cylinder head maintains stable performance during prolonged use, reducing thermal stress compared to conventional models*.

Product details

New Arrival 4 Valve Cylinder Head with Rocker Arm Camshaft for BWS125 MIO 19/21mm 21/23mm

The New Arrival 4 Valve Cylinder Head with Rocker Arm Camshaft is engineered for BWS125 MIO engines, featuring a robust iron camshaft paired with an aluminum cylinder head. Designed for 19/21mm and 21/23mm valve configurations, this component optimizes airflow and heat dissipation while maintaining durability for high-performance applications.

Technical specifications

FeatureSpecificationApplication Scenario
Material (Cylinder Head)Aluminum (lightweight, heat-resistant)Reduces engine weight for improved fuel efficiency
Material (Camshaft)Iron (high-strength)Ensures durability under high stress
Valve Configuration4 valves (19/21mm or 21/23mm)Enhances airflow for better power output
CompatibilityBWS125 MIO enginesDirect fit for motorcycles and scooters
Heat DissipationOptimized fin designPrevents overheating in high-rev scenarios

Customization guide

Adjust valve sizes (19/21mm to 21/23mm) or material grades to meet specific engine requirements. For example, upgrading to a titanium-coated camshaft can enhance corrosion resistance in harsh environments.

Get inspired

The 4-valve design and aluminum body work together to maximize engine efficiency. Whether you’re building a high-speed scooter or a touring motorcycle, this cylinder head delivers reliable performance under demanding conditions.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Valve Size Range19/21mm21/23mm23/25mm*
Material GradeStandard ironHigh-carbon ironChromium-molybdenum steel
Heat Resistance250°C300°C350°C*
Weight4.2kg (lightweight)3.8kg (20% lighter)3.5kg (industry-leading)

Supplier's note

  1. Technical Breakthroughs:

    • Aluminum Cylinder Head: 20% lighter than cast iron, reducing engine inertia for faster acceleration.
    • 4-Valve Design: Increases airflow by 15% compared to 2-valve configurations, boosting power output.
    • Chromium-Molybdenum Steel (Pro Model): Triple the corrosion resistance of standard iron, ideal for marine or industrial engines.

  2. Version Selection Guide:

    • Base Model: Suitable for standard BWS125 MIO users prioritizing cost-effectiveness and everyday reliability.
    • Advanced Model: Recommended for performance enthusiasts seeking enhanced heat resistance and lightweight design.
    • Pro Model: Best for extreme applications (e.g., racing, off-road) where durability and high-temperature stability are critical.

With the Pro Model’s 350°C heat resistance, you can sustain prolonged high-rev operation without thermal degradation. Pair it with its ultra-lightweight body to achieve a power-to-weight ratio unmatched in the industry.

Frequently asked questions

  • Which motorcycle models is the New Arrival 4 Valve Cylinder Head compatible with?

  • How do I maintain the iron cylinder head to prevent rust and wear?

  • Why is iron preferred over aluminum for this cylinder head?

  • Can this cylinder head be customized for non-standard engine setups?

  • Is the cylinder head certified for safety and performance standards?

  • How does the 4-valve design improve engine performance?

  • Does installation require specialized tools or expertise?

  • What’s the expected lifespan of the iron cylinder head compared to aluminum?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Cylinder Head MaterialHigh-stress engines (racing/off-road)Iron (Yield Strength: 250 MPa▲) vs Aluminum (Industry Standard: 150 MPa)▲ Durability: Withstands extreme thermal stress (ISO 13580 compliance)Heavier (6.5 kg) vs aluminum (5 kg) → Trade-off for lightweight applications
Valve ConfigurationHigh-performance engines4 valves/cylinder (Airflow: 550 m³/h▲) vs 2 valves (Industry Standard)▲ Power Output: 12% increase in torque (SAE J1995 testing)Higher maintenance cost due to complex valve timing
Camshaft DesignPerformance-tuned enginesRocker Arm Camshaft (Lobe Lift: 8.5 mm) vs Solid Camshaft (Industry)▲ Precision: 0.02 mm alignment tolerance (per DIN 7192)Requires frequent lubrication → Maintenance dependency
WeightLightweight motorcycles (e.g., scooters)Iron: 6.5 kg vs Aluminum (Advanced Tier): 4.8 kg▲▲ Weight Savings: 27% lighter Advanced Tier → Improved fuel efficiencyBase Tier’s weight limits agility in lightweight vehicles
Noise LevelUrban commutingBase: 58 dBA (Quieter than 62 dBA Industry Standard)▲ vs Advanced: 55 dBA▲ NVH Reduction: Iron dampens vibration (per ISO 3744)Advanced Tier’s sound dampening adds 10% cost premium
Thermal EfficiencyHigh-temperature environmentsIron: Max 90°C (Heat Dissipation: 85%▲) vs Industry Standard: 85°C▲ Heat Retention: Maintains optimal combustion temps (ASTM E1122)Slower cooling → Risk of overheating in prolonged use

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