Product Description

The Bore Up Kit parts have been modified at any time, such as shape changes and dimension changes.
If you need repair parts for overhauling, please check the piston before purchasing.

Please make sure to check the displacement of the piston ring, and piston pins before making your purchase.

Note for those who already have a bore up kit installed:
In 1996-97, the shape of the STD/ULTRA85/88cc piston has been changed to change cylinder heads due to the clamping angle of the valve clamp.
If you install the old bore up piston on with each current STD/ULTRA head (engraved on the fin), the valve and piston will come into contact with the current (new) piston.
The thickness of the piston ring was changed between 1999 and 2001. Older and current piston rings are different in thickness. If you need a piston ring for repair, please check the size before purchasing.

Indications

Please make sure to check the displacement of the piston ring, and piston pins before making your purchase.

Note for those who already have a bore up kit installed:
In 1996-97, the shape of the STD/ULTRA85/88cc piston has been changed to change cylinder heads due to the clamping angle of the valve clamp.
If you install the old bore up piston on with each current STD/ULTRA head (engraved on the fin), the valve and piston will come into contact with the current (new) piston.
The thickness of the piston ring was changed between 1999 and 2001. Older and current piston rings are different in thickness. If you need a piston ring for repair, please check the size before purchasing

From the Manufacturer

Kita’s a motorcycle specialist

Kitaka is based in Osaka.

I like motorcycles, and know how they feel like you.

Kitako attracts the owner of this heart.

Through development, manufacturing and sales of high quality products, we can meet each needs and support our dreams.

Then we create and propose a motorcycle world that is safer and richer.