Boat Trailer 8″ Blue Poly Keel Roller & Galvanised Bracket Kit – 17mm Bore for 16mm Shaft (SKU: BDA020)

The BDA020 is a complete keel roller kit featuring a durable 8″ blue polypropylene roller and a hot-dip galvanized standard bracket.
It’s ideal for alloy boats and trailers using a 16mm spindle, thanks to the 17mm bore roller.

This kit includes a clamp-on stem bracket (75mm x 50mm) for easy height adjustment, making it a breeze to install without welding or custom fabrication.
The roller’s non-marking poly material ensures a gentle touch on your hull, while resisting UV, salt, and general wear.

Whether you’re replacing old parts or building a new setup, this all-in-one combo saves time and guarantees compatibility between roller and bracket.

Specifications:

A perfect fit for alloy boat trailers needing light-duty roller systems with ease of install and maintenance.

Frequently Asked Questions

• What spindle does this fit?
  The roller has a 17mm bore, designed for use with a 16mm spindle for a snug fit.
• Is it suitable for painted or alloy boats?
  Yes, the non-marking poly is perfect for protecting painted, alloy, or fiberglass hulls.
• Do I need welding for installation?
  No, the clamp-on design allows for simple, bolt-on installation.
• Will it rust?
  The bracket is galvanized to resist corrosion from water exposure.

Is This the Right Kit for You?

Recommended For:

• Boat trailers using 16mm spindle systems
• Lightweight alloy or fiberglass boats
• DIYers looking for quick clamp-on installation
• Users upgrading to non-marking roller material

Not Recommended For:

• Heavy-duty boats needing thicker spindles (20mm or more)
• Trailers with fixed welded brackets

Installation Tips:

1. Align the clamp-on bracket onto your trailer frame.
2. Secure it using U-bolts or bolts on the clamp stem (75x50mm).
3. Fit your 16mm spindle through the roller (17mm bore allows easy slide).
4. Adjust height as needed, then lock all fasteners.
5. Spin the roller to ensure free movement before loading your boat.