KIT SUPER HEAD 4V+R 145cc TAKEGAWA (with Φ34 mm throttle body) for Dax ST125 JB04-06

KIT SUPER HEAD 4V+R 145cc TAKEGAWA (with Φ34 mm throttle body) for Dax ST125 JB04-06

Included components:

• High-performance SUPER HEAD 4V+R cylinder head (1 camshaft, 4 valves)

• 145cc displacement upgrade kit

• Auto-decompression camshaft

• Large-diameter Φ34 mm throttle body

• FI-CON TYPE-X fuel injection controller

1. SUPER HEAD 4V+R Cylinder Head (1 camshaft, 4 valves)

• 4 valves (2 intake / 2 exhaust) for maximum airflow

• Optimized combustion chamber, valve angle, and port shape

• M8 spark plug centrally located for efficient ignition

• Roller rocker arms with integrated bearings for low friction

• Premium finish: polished side covers + silver-anodized oil tower

• Designed for both performance and visual enhancement

2. Cylinder and Piston

• Aluminum cylinder with cast iron sleeve

• Bore: 54 mm

• Stroke: 63.1 mm (stock)

• Compression ratio: 12.0:1

• Lightweight cast aluminum piston with high rigidity

• Compatible with SP Takegawa’s optional M5 temp sensor

3. Auto-Decompression Camshaft

• Dual ball bearings for reduced friction

• Easy starting even with increased displacement

• High-RPM-friendly valve tracking

4. Large-Diameter Φ34 mm Throttle Body 

• Custom-designed for SUPER HEAD 4V+R

• Maximizes airflow to the combustion chamber

• Installs without modifying wiring or bodywork

• Includes high-performance air filter

• Enhances throttle response and power delivery

5. FI-CON TYPE-X (Fuel Injection Controller)

• Plug-and-play with the stock ECU

• Preconfigured MAPs for your setup

• Full control via smartphone or PC

Features include:

• Custom MAP creation and tuning

• Display: RPM, throttle position, engine temperature

• Built-in rev limiter

• Compatible with OEM Honda alarm

Requirements:

• Compatible smartphone or PC

• Paid app required

• Internet connection needed

Recommended Option: Crankshaft Support Adapter

Reference for Dax 125 (JB04/JB06): 01-10-0150
→ Reduces torsional stress on the crankshaft
→ Improves engine longevity under racing conditions

Kit Advantages:

• 145cc upgrade with high-performance 4-valve head

• Delivers nearly 15 hp between 8500 and 11,000 rpm

• Sharp throttle response and extended rev range

• Throttle body included for optimal airflow

• Competition-only full performance package