Athena Ø97mm Cylinder-piston kitYAMAHA 450 YZ 450 F (CJ15) - 2010 - 2013Ref : ATH00704A / 1117448

The ATHENA Ø97 mm cylinder kit for Yamaha YZ450F (2010-2013) is designed for motocross riders seeking a robust engine part for rebuilding or increasing displacement. Made from aluminum, this kit incorporates technical solutions aimed at enhancing the longevity of the block and optimizing thermal management.

• Aluminum cylinder treated with nickel-carbide for a durable friction surface.
• Ø 97 mm bore suitable for displacement-increasing modifications.
• Optimized cooling circuit design with increased liquid volume for better thermal exchange.
• High-performance exhaust valves according to the supplied versions.
• Bronze cylinder head dome for a finish resistant to piston-cylinder head contact.
• Forged piston with skirts treated with molybdenum disulfide to reduce friction.

Delivered complete: piston, rings, circlips, pin, gasket set, and, depending on the references, cylinder head and exhaust valves. Pistons, rings, and gaskets are also available as spare parts for maintenance or repair.

Main compatibility: YAMAHA YZ 450 F (2011-2013). Manufacturer reference: P400485100040. This kit fits into engine preparation and refurbishment projects — professional installation is recommended to ensure tolerances and settings are met.