The fox suspension 20wt gold bath oil fox has developed a new bath oil for use in most forks fox suspension 20wt gold bath oil features the new 20wt gold bath oil may be used with fit and oc damper cartridges but should never be used in open bath fork dampers fox 20wt gold is compatible with all 34mm 36mm and 40mm fox low friction wipers manufactured by skf fox 20wt gold is only compatible with the latest version of the 32mm fox low friction wip