DESCRIPTION:

This big bore sleeve is for the original 81-83mm ADA Racing Yamaha billet cylinder. This sleeve will work with 84-86mm bore sizes. Cylinder boring is required to fit this sleeve as it is larger in diameter than the original. Sleeve dimensions are 90mm OD by 83.25mm ID. These are proprietary sleeves made by Northwest Sleeve for ADA Racing.

AVAILABILITY:

In Stock.