Constructed from rugged, nylon composite
Provides better handling
Quicker plane times
The most vulnerable part of your lower unit is the skeg. It often ends up damaged, requiring repair or replacement. Now, the revolutionary Blackfin provides a breakthrough in skeg protection, repair, or replacement. Blackfin is made of a rugged, nylon composite, and it's easily installed, saving the time and expense of a trip to the marine shop. Unlike typical skegs, Blackfin offers performance enhancing features that provide better handling, quicker plane times, and more steering control. Comes with all you need for a do-it-yourself application, including special marine adhesive and complete instruction. Sizes are determined by your lower unit gear housing measurement: S(10-1/2" to 12-1/2"), M(13-1/2" to 14-1/2"). Exception: Mercruiser Alpha One measures medium but requires small instead.