S-Stage Bore Up Kit 145cc (Camshaft Not Included) for GROM, CT125

【SP武川 01-05-5458 S-Stage Bore Up Kit 145cc Camless GROM CT125 Engine Parts Takegawa】
■Product Description
Enjoy torqueful output performance not found in the stock model.

■Detailed Description
By changing the cylinder and piston, the displacement can be changed from the stock 124cc to 145cc.
By installing it simultaneously with the FI-CON TYPE-e (injection controller), it achieves torqueful output characteristics different from the stock model.
The cylinder uses an aluminum iron sleeve cylinder.
Bore diameter 54mm. Stroke 63.1mm (stock). Compression ratio 11.2:1.
Since SP Takegawa's M5 temperature sensor can be installed on the cylinder, you can measure the cylinder temperature by purchasing a separate thermometer (Compact LED Thermometer with M5 temperature sensor).
There are two types of S-Stage bore up kits: one without a sport camshaft and one with it included.

■Compatible Models
HONDA
GROM (JC92-1000001 to 1099999)
CT125 (JA65-1000001 to 1099999)

■Notes
*The image is for illustrative purposes only. It includes products with different sizes and colors.
*Product design and specifications may change without prior notice. Please be aware of this.
*When installing the S-Stage bore up kit, simultaneous installation of the FI-CON TYPE-e (injection controller) is required.
*Since the displacement will be 125cc or more, it cannot be ridden on public roads under light motorcycle (Type 2) registration. It is for competition use only.
*Due to the significant increase in engine output and torque with the installation of SP Takegawa's bore up kit, the crankshaft will be subjected to increased stress such as twisting and deflection. To reduce the burden on the crankshaft, SP Takegawa recommends simultaneously installing a crankshaft support adapter. The crankshaft support adapter enhances crankshaft durability by adding ball bearing support to the flywheel side end of the crankshaft, suppressing twisting and deflection.