This section outlines some of the common fit challenges which Rocna owners can come across when attempting to install the new anchor on an older vessel, the bow-roller of which is designed perhaps for a specific anchor type and size. Some of these problems are common, and there can be simple and cheap solutions in many cases.
The roll-bar on the Rocna can unfortunately represent a problem with certain roller designs, if the roll-bar should clash with a forward projection such as a bowsprit, or the underside of a platform.
This is an issue with some sailboats, if their anchor bow-roller(s) are designed as part of the bowsprit arrangement. Many yachts with bowsprits incorporate a roller directly next to the 'sprit itself. A Rocna, with its roll-bar, cannot fit in such a location. Moreover, the whisker and bob stays can present an additional challenge.
This is an issue with some powerboats, if their anchor bow-roller(s) are embedded and enclosed in a forward projecting platform. A Rocna, with its roll-bar, may not be able to be pulled home completely, should the roll-bar strike the underside of the platform earlier than desirable.
Existing rollers may feature retaining pins designed to fit through a hole in the matching anchor, or over-the-top bolts or latches designed to both secure the anchor and chain when deployed. The shank on the Rocna is relatively tall when compared with some other anchor types, particularly CQRs (articulated plows). This may require modifying the pins, or removal altogether.
Moreover, please note that we advise against the use of through-shank retaining pins. For more, please consult the Anchor retainment section.