SKU: 20-19780

Hayabusas with large bore and/or high compression motors have a tendency to "kick back" when being started. Often this will strip the teeth off of the stock idler gear, which in turn destroys the starter gear, which results in the costly replacement of the starter motor and idler gear. The heavy duty gear features a gear face that is a full 12 mm wide, which is 5 mm wider than the stock gear. With 70% more gear to gear contact, the heavy duty gear can stand much more abuse than the stock gear. A must for all modified Hayabusas. RETAIL: $249 Slips in place of the stock idler gear under the black cover. Requires minor cover clearancing for the wider gear. Fits models thru 2002 ONLY with the older Starter Setup. Priced Each. APE