You should change the oil in your bike's hydraulic forks roughly every 1000km - this will keep them operating as new for much longer.Weldtite's Suspension Fork Oil contains anti-foam agents, which help your forks cope with the toughest of trails.Race formulationMost popular viscosity indexProlongs seal lifeEnsures consistent dampening at elevated and low temperaturesProduct Code: 03007 ( 5wt)Product Code: 03026 (7.5wt - 500ml)