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05-21 Yamaha YZ125 YZ 125 58mm 144cc Athena Big Bore Cylinder Crank Rebuild Kit
Athena 58mm Complete 144cc Big Bore Motor Rebuild Kit! This is the best and most reliable rebuild kit on the market! Fits Yamaha YZ125 2 Stroke Dirt Bikes. Years 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021. Also Fits the YZ125X Years 2020 & 2021. (Check Motor Vin To Confirm Year Before Ordering). 58mm 144cc Nikasil Athena Stock Bore Cylinder.
Athena 54mm Coated Piston Kit (Includes, Piston, Pin, Rings & Clips). Wiseco Heavy Duty Crank Shaft. Wiseco Heavy Duty Main Bearings.
Bottom End Oil Seals Kit.