S-Stage Bore-Up Kit 181cc Camless Monkey 125 Super Cub C125 Grom MSX125 CT125

【SP武川 01-05-0385 S-Stage Bore Up Kit 181cc without Camshaft for Monkey 125, Super Cub C125, GROM, MSX125, CT125 Engine Parts Takegawa】
■Product Description
Enjoy powerful output performance that is not available with the stock engine.

■Detailed Description
This is a bore up kit that changes the displacement from the stock 124cc to 181cc by changing the cylinder and piston.
By installing it simultaneously with an injection controller, you can achieve powerful output characteristics different from the stock engine.
The cylinder uses an all-aluminum ceramic plated cylinder with excellent durability, airtightness, and heat dissipation.
Bore diameter 63mm. Stroke 57.9mm (stock).
The piston is a standard type for high-octane gasoline.
Compression ratio Standard piston 11.0:1.
The "without sports camshaft" option is intended for those who already have a sports camshaft installed and wish to upgrade to S-Stage.

■Compatible Models
HONDA
Monkey 125 (JB02-1000001～)
Monkey 125 (Thai model/MLHJB02)
Super Cub C125 (JA48-1000001～)
GROM (JC61-1000001～1299999)
GROM (JC61-1300001～)
GROM (JC75-1000001～)
MSX125 (MLHJC6181D5000001～)
MSX125SF
CT125 (JA55-1000001～)

■Notes
*Images are for illustration purposes only. They may include products with different sizes or colors.
*Product design and specifications are subject to change without notice. Please be aware.
*When installing the S-Stage bore up kit, simultaneous installation of an injection controller is required.
*Injection controllers vary depending on the vehicle model and frame number. If purchasing simultaneously, please purchase the Hyper S-Stage specifically designed for your vehicle.
*Since the displacement will be 125cc or more, it is not possible to ride on public roads under a moped class 2 registration. It is for competition use only.
*By installing the SP Takegawa S-Stage bore up kit, engine output and torque will significantly increase, which will increase the load on the crankshaft, such as twisting and deflection. To reduce the load on the crankshaft, SP Takegawa recommends simultaneously installing a crankshaft support adapter. The crankshaft support adapter adds support by a ball bearing to the end of the crankshaft flywheel side, thereby suppressing twisting and deflection and increasing the durability of the crankshaft.