Boat Trailer 4.5″ Red Poly Parallel Keel Roller with Galvanised Bracket & Spindle Kit – 17mm Bore (SKU: BDA092)

The BDA092 is a compact 4.5″ red poly keel roller designed for smaller boats and lightweight trailers. With a flat parallel design, it provides even hull contact, reducing rocking and promoting stable load guidance.

Made from soft, non-marking red polyurethane, this roller is ideal for painted and fibreglass boats. It cushions light impacts while offering excellent support and hull protection during launch and retrieval.

The roller is paired with a heavy-duty galvanised bracket and 17mm bore to suit 16mm spindles. With 115mm in length and 72mm in diameter, it’s a smart fit for narrow trailers and central keel support.

Specifications:

Don’t let the size fool you—BDA092 is a tiny powerhouse designed to roll soft, carry smooth, and protect what matters most.

Frequently Asked Questions

• What’s the main benefit of red poly?
  It’s soft, UV stable, and non-marking—perfect for delicate hull finishes.
• Is 4.5″ enough for my boat?
  It’s best for smaller boats and light trailers. For bigger hulls, consider 6″ or 8″.
• Does the kit include mounting hardware?
  This kit includes the roller, bracket, and spindle.
• Is this a centering roller?
  No—it’s flat/parallel for support. For centering, try Sydney or V-style rollers.

Is This the Right Kit for You?

Recommended For:

• Small boat trailers (fibreglass or painted hulls)
• Users needing soft, non-marking support
• Those replacing worn parallel rollers on narrow brackets

Not Recommended For:

• Large boats or trailers needing high-load rollers
• Trailers requiring keel-centering

Installation Tips:

1. Mount bracket securely to trailer frame.
2. Slide roller onto spindle and align properly.
3. Use washers or spacers if needed for tight fit.
4. Check smooth rotation and tighten nuts securely.