Super Head 4-Valve+R Kit CT125 Monkey 125 GROM

【SP武川 01-03-0002 Super Head 4-Valve+R Kit for CT125, Monkey 125, GROM Engines - Parts by Takegawa】
■Product Description
By employing two intake and two exhaust valves, the valve curtain area has been further expanded, enabling higher intake and exhaust efficiency than with large-diameter 2-valve systems.
In addition, with the adoption of a 4-valve system, the head is designed with a balanced center plug, valve angle, combustion chamber shape, and port shape, allowing for increased output and achieving the sustained high-rev output characteristic that is a major feature of the Super Head.
By adopting a 1-cam, 4-valve system, we have achieved the lightest and most compact design possible, while condensing the performance of the strongest SOHC head.

■Detailed Description
●Uses a bearing-integrated roller rocker arm similar to the stock part.
Reduces friction resistance with the camshaft and, thanks to the roller bearings integrated into the rocker arm, smoothly follows the cam profile from low to high RPMs.
●Valves
Intake: 21.5mm x 2 / Exhaust: 18.5mm x 2
Valve stem shaft diameter: 4.0mm for both intake and exhaust.
●Valve spring
Employs an unequal pitch (2-stage pitch) single valve spring, making surging less likely at high RPMs.
The port adopts the optimal port diameter to match the SP Takegawa Big Throttle Body manifold.
Additionally, by simultaneously installing the SP Takegawa Big Throttle Body manifold, a smooth and unobstructed intake effect from the big throttle body to the combustion chamber is achieved, maximizing the performance of the cylinder head.
The original SP Takegawa cylinder head design perfectly matches the vehicle's style, enhancing the custom image of the vehicle.
Furthermore, the inspection cover and L. cylinder head side cover are made of aluminum die-cast with a barrel polished finish.
In addition, the oil tower on the R side of the cylinder head features machined aluminum with a silver anodized finish.
The various covers and oil tower, excellent for dress-up, beautifully accentuate the cylinder head.
●M8 Spark Plug
An M8 spark plug is adopted due to the optimal valve angle resulting from the 4-valve system and the compact head design.

■Compatible Models
HONDA
CT125 (JA65-1000001～)
Monkey 125 (JB03/JB05-1000001～)
GROM (JC92-1000001～1099999)

■Notes
※The image is for illustration purposes only. It includes products with different sizes and colors.
※Product design and specifications are subject to change without notice. Please be aware of this.
※As this product is made-to-order, cancellations after ordering are not possible.
※This is a made-to-order product, so delivery may take some time. Also, please note that the manufacturer may discontinue the product or change its specifications without prior notice. Thank you for your understanding.