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 WARN Trucks and a 10x1
Description
and a 10x1
500 BPM for faster hammer drilling into masonry materials
designed to deliver superior durability and performance for off-road riding
ProGuard Offroad Harnesses (2-Pack Gray) w/ 2" Straps & 4 Points of Contact & Seat Belt Bypass Clip for All UTVs incl Polaris
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 WARN Trucks and a 10x1UPGRADE 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
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