S-Stage Bore Up Kit 145cc with N-10 Cam for Grom CT125

【SP武川 01-05-5457 S-Stage Bore Up Kit 145cc with N-10 Cam for GROM CT125 Engine Parts Takegawa】
■Product Description
Enjoy powerful output performance not found in the stock engine.

■Detailed Description
●S-Stage Bore Up Kit 145cc
By changing the cylinder and piston, the displacement can be changed from the stock 124cc to 145cc. When installed simultaneously with the FI-Con TYPE-e (injection controller), it achieves powerful output characteristics different from the stock engine.
The cylinder uses an aluminum iron sleeve cylinder.
Bore diameter 54mm. Stroke 63.1mm (stock). Compression ratio 11.2:1.
Since the cylinder can be fitted with an SP Takegawa M5 temperature sensor, you can measure the cylinder temperature by purchasing a separate thermometer (Compact LED Thermometer with M5 Temperature Sensor).
S-Stage Bore Up Kits are available in two types: without sport camshaft and with sport camshaft.
●Sport Camshaft (N-10)
Optimized profile that maximizes the performance of the stock cylinder head, improving output performance. When installed on a stock engine, it improves output in the high RPM range.
By removing the decompression parts from the stock camshaft and assembling them into the sport camshaft, it becomes an auto-decompression specification.

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

■Precautions
※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.
※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 with a moped license (Class 2). It is for competition use only.
※Since the installation of SP Takegawa's bore-up kit significantly increases engine output and torque, the crankshaft is subject to increased stress such as twisting and deflection. SP Takegawa recommends simultaneous installation of a crankshaft support adapter to reduce the load on the crankshaft. The crankshaft support adapter supports the end of the crankshaft flywheel side with a ball bearing, thereby suppressing twisting and deflection and improving the durability of the crankshaft.