Gross-Trim, Fine-Tune Mainsheet
The divided cascading system runs the powerful fine-tune lead aft, allowing the helmsman to easily optimize sail shape on a light air beat. The gross-trim runs forward to the trimmer for fast mark roundings. To use this efficient system, simply add a 144 swivel base and third-party mainsheet adapter plate to your existing hardware.
MKIV Unit 1 Furler
MKIV's are easy to adjust for reefing and furling. When racing in non-class events, J/105 sailors can take the spool off and use the double-groove foil for fast sail changes.
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