Zero base with trim adapter for RDM masts
This zero base (= zero cm extension) is suitable for windsurfers who do not need a mast extension. The mast base has a reduced diameter and therefore fits any normal skinny (RDM) mast. Three trim rollers ensure that you can rig up your rig efficiently with little effort.
Standardized RDM mast foot - fits in any skinny mast
Trim adapter with 3 large smooth-running trim rollers for high power transmission
One-button quick-release system