Athena 58mm 144cc Big Bore Cylinder Top End Kit! This is the best and most reliable big bore kit on the market! Fits Yamaha YZ125 2 Stroke Dirt Bikes.
Years 1997 1998 1999 2000 2001 2002 2003 2004. 58mm 144cc Nikasil Athena Big Bore Cylinder. Athena 58mm Coated Piston Kit (Includes, Piston, Pin, Rings & Clips).
Athena Complete Top End Gasket Set. The item "97-04 Yamaha YZ125 YZ 125 58mm 144cc Athena Big Bore Cylinder Top End Piston Kit" is in sale since Thursday, October 4, 2018. This item is in the category "eBay Motors\Parts & Accessories\Motorcycle Parts\Engines & Engine Parts\Big Bore & Top End Kits". The seller is "azquadparts" and is located in Gilbert, Arizona. This item can be shipped worldwide.