Athena Long Stroke Racing Crankshaft for the 2002-2018 Yamaha YZ85 is designed for high-performance applications. Manufactured using premium materials and advanced production technology, this crankshaft ensures maximum durability and performance, even under high stress. It is compatible with Athena’s Long Stroke Racing cylinder kit to increase displacement to 80cc.

Features

• Designed for high-performance and racing applications


• Manufactured from premium materials for durability


• Compatible with Athena Long Stroke Racing cylinder kit for increased displacement


• Optimized for high-powered engines under extreme conditions

Specifications

• Stroke: 51.10mm


• Center to Center: 97.60mm


• Crank Radius: 25.55mm


• Net Weight: 1.78kg


• Piston Pin Diameter: 18.00mm


• Big End Bearing: 20x26x13.8mm


• Big End Bore: 20.00mm


• Big End Width: 14.00mm


• Small End Width: 14.00mm


• Shoulder Width: 45.00mm


• Pivot Fly Wheel Diameter: 20.00mm


• Pivot Fly Wheel Length: 61.00mm


• Pivot Pulley Diameter: 20.00mm


• Pivot Pulley Length: 52.50mm


• Washer Thickness: 20.00mm

Cross-Reference OEM Part Numbers

• Not specified

Vehicle Fitments

• 2002 Yamaha YZ85


• 2003 Yamaha YZ85


• 2004 Yamaha YZ85


• 2005 Yamaha YZ85


• 2006 Yamaha YZ85


• 2007 Yamaha YZ85


• 2008 Yamaha YZ85


• 2009 Yamaha YZ85


• 2010 Yamaha YZ85


• 2011 Yamaha YZ85


• 2012 Yamaha YZ85


• 2013 Yamaha YZ85


• 2014 Yamaha YZ85


• 2015 Yamaha YZ85


• 2016 Yamaha YZ85


• 2017 Yamaha YZ85


• 2018 Yamaha YZ85