17R-Stage+D Bore Up Kit 113cc for Cub 90 CD90 Engine (HA Cylinder/R15E)

We have further improved the output at high RPMs by redesigning the port and fin shapes from the conventional R Stage +D and adopting a new camshaft profile!
Crankcase modification is required for the installation of the 113cc big bore cylinder.
To fully unleash the engine performance with the 17R Stage +D, modifications to the carburetor and exhaust are necessary.
However, Takegawa does not offer carburetor kits or custom exhausts for the CD90, Super Cub 90, or Cub 100EX.
Therefore, this product is intended for CD90, Super Cub 90, and Cub 100EX engines (standalone).
It is also intended for vehicles such as the Monkey and Gorilla that have these engines installed.
Please purchase with this understanding.
Compatible models
*Compatibility is for the engine itself.
Not for the vehicle.
Please note.
:CD90 (HA03-1100005～)
:Super Cub 90 (HA02-1800001～)
:Cub 100EX (HA05-0000037～0002036/HA05-1000002～/HA06-0000001～)
*The image is for illustrative purposes only, and the design and specifications of the products shown may be subject to change without notice. Thank you for your understanding.