Boat Trailer Keel Roller 120 x 80 mm – 17 mm Bore, For Larger Boats

The 120 x 80 mm keel roller is designed to reliably support the keel of larger boats. Its extended 120 mm length offers a greater contact area with the keel, which is especially beneficial for boats with wider or heavier hulls. The 80 mm diameter provides a good balance between load support and easy rolling. This roller fits on a standard 17 mm shaft, allowing you to quickly replace or upgrade your trailer’s existing rollers.

Two versions are available: white polyurethane and black rubber. The white polyurethane roller is gentle on your boat’s hull – it won’t scratch or scuff the finish, even with repeated launching and loading. The black rubber roller offers proven flexibility and strength, conforming slightly to the keel’s shape and absorbing bumps during transport. Both materials are highly resistant to environmental damage – they will not warp or degrade even after long exposure to sunlight and saltwater.

Thanks to its increased length (120 mm), this roller covers more of the keel area, providing extra stability. This is important for boats of substantial weight, where multiple keel rollers work together to distribute the load. The 120x80 mm roller keeps the boat centered on the trailer, prevents the hull from rocking during towing, and makes the loading and unloading process smoother.

Use Cases and Recommendations:

• Ideal for boats approximately 5–7 meters in length that require a longer keel support for safe trailering
• White roller: recommended for expensive or new boats where preserving the hull finish is critical; black roller: great for rugged conditions and handling higher stress and weight
• Use this roller in conjunction with additional keel rollers and side rollers on your trailer to ensure the entire hull is evenly supported
• Inspect the rollers regularly – although this roller is built for heavy loads, replacing it when worn will ensure your boat remains protected on every journey