The rudder on Ocean Kayak and Necky kayaks is a pretty tough unit. But, hit something with enough force (or drop your kayak when loading it on the roof) and you will find the shaft the rudder pivots on will bend, or it will come loose. The solutions is an easy one; fit a new headstock.
This will fit the rudder used on all current Ocean Kayak boats (this style of rudder has been used for many years), as well as most Necky Kayaks. If in doubt, email us a picture of your rudder and we can advise.