YZ450 06' what shock oil should I use?

[Lee_Mason]

Does anyone know what wieght shock oil that I should in my 450 06' shock.

I have rebuilt shocks before and have a nitrogen bottle with all the right fittings and gauges.

[grayracer513]

Yamaha specifies "S1" fluid, which is their proprietary suspension oil. It's very expensive, and frankly not that great. Maxima Light Shock Fluid (3wt) is a close equivalent that's both more reasonably priced and holds up better.

[Lee_Mason]

Thanks. Lee.