This is a useful fitting, which catches any debris in the oiling system’s return side. It sits in the neck of the oil tank and has a cut-away aligned with the return outlet, allowing returning lubricant to spray into the filter before returning to the tank.

These filters fit most early K models, where the oil tank’s return pipe describes a straight line on the inner, forward face of the filler neck. The rebate on the filter engages with ...

This KSS exhaust nut has been made by the Velocette expert Dennis Frost, they are made for all early K series OHC models that have the threaded spigot on the cylinder head to fix the exhaust front pipe. They are made from Aluminium Bronze. More importantly, Dennis has also produced a great fitting tool which fits perfectly on the exhaust nut, making it much better when fitting or removing the nut.