YFZ450 YFZ 450 Wiseco 12:1 Piston 95mm Stock Bore Cylinder Top End Rebuild Kit RD350/RZ350/RD250/RZ250 - KRF1000AMFNL - 2021 -

- KRF1000AMFNL - 2021 - Engine Cover(s)

13111-MEB-670

Pro X 66mm Piston Kit - Includes Piston

providing an unbeatable seal for high-compression environments

YFZ450 YFZ 450 Wiseco 12:1 Piston 95mm Stock Bore Cylinder Top End Rebuild Kit RD350/RZ350/RD250/RZ250 - KRF1000AMFNL - 2021 -Brand New Complete Yamaha YFZ 450 Top End Rebuild Kit Wiseco Stock Bore Piston Kit Cometic Top End Gasket Fits Yamaha YFZ450 Carbureted Models Years 2004 2005 2006 2007 2008 2009 2012 2013 Add Amazing & Reliable Power With The Best Components In The Industry! This Complete Top End Rebuild Kit Includes: BPRATV 95mm Stock Standard Bore Nikasil Plated Cylinder (1 Year Warranty) Wiseco BPRATV Custom 12: 1~12. 5: 1 Piston Kit (Includes Forged Piston,