Athena P400485100016 478cc Big Bore Cylinder Kit (98mm Bore) - Forged Piston Performance Upgrade, Converts 450cc to 478cc, Compatible with Yamaha YFZ450 ATV, YZ450F, and WR450F racing Designed to shed mud

Designed to shed mud

enabling the BL Motor to run cooler and more efficiently for longer life The electronically-controlled BL Brushless Motor efficiently uses energy to match torque and RPM to the changing demands of the application Variable 2-speed design (0-500 & 0-2

The 2726-20 Milwaukee hedge trimmer has the power to cut branches that are 3/4" thick and last 2 hours per charge

controlled application with minimal waste

and even the rough patches we all end up in

Athena P400485100016 478cc Big Bore Cylinder Kit (98mm Bore) - Forged Piston Performance Upgrade, Converts 450cc to 478cc, Compatible with Yamaha YFZ450 ATV, YZ450F, and WR450F racing Designed to shed mudUPGRADE YOUR RIDE TO THE NEXT LEVEL OF PERFORMANCE Extract massive power, aggressive low end torque, and unmatched acceleration from your 450cc four stroke engine with the Athena Big Bore Cylinder Kit (Part No. P400485100016), a premium race proven package engineered in Italy to seamlessly convert your factory setup into a high revving, high output 478cc powerhouse. Entirely cast from high grade aluminum and treated with a specialized Motor Nicksil