Moose Offroad Gas Shock Gas Shock - Front - Heavy Duty - YamahaFeatures Upgrade those oil shocks to a heavy duty gas shocks Rugged design comes standard with 10% stiffer springs Adjustable preload settings Ready to mount, right out of the box Shocks and struts include springs, retainers and bumpers (where applicable) Specs Product Name Shock Absorber Type Coilover Monotube Damping Method Gas Charged Duty Heavy Duty Mounting Position Front Units Each Riding Style ATV Fitments Position Notes 1989 2004 Yamaha YFM