Bennett 12 x 9 BOLT System with Adjustable Hinge

The Bennett 12x9 BOLT System with Adjustable Upper Hinge lets you dial in the running angle of your vessel with a properly sized, adjustable-mount trim tab. It is designed for boaters who want the flexibility of an adjustable upper hinge to fine-tune fit on transoms where a fixed mount wouldn't sit quite right.

Properly sized trim tabs improve boat performance by adjusting the vessel's running angle, helping you get on plane faster, correct listing, and improve visibility and control. As a general rule for boats topping out around 40 MPH, choose at least one inch of tab span per side for every foot of boat length — a 22-foot boat, for example, would typically use a 24-by-9-inch tab — and note that a control switch is required and sold separately. Browse more options in our trim tabs and trim systems category.

Key Features: 12" x 9" trim tabs, adjustable upper hinge mount, corrects listing and porpoising, improves visibility and efficiency, control switch sold separately, sold as a kit.

Frequently Asked Questions

What does the adjustable upper hinge do? It lets you fine-tune the mounting angle to fit transoms where a fixed hinge wouldn't sit correctly.

Does this kit include the control switch? No, a control switch is required and sold separately.

How do I choose the right size tab for my boat? As a general rule for boats under 40 MPH, choose about 1 inch of tab span per side for every foot of boat length.