Boat Trailer 6″ Red Poly Sydney Keel Roller with Galvanised Bracket & Spindle Kit – 17mm Bore (SKU: BDA037)

The BDA037 is a 6″ red poly Sydney-style keel roller kit engineered to help guide and centre your boat smoothly during launching and retrieval.
It features a concave profile ideal for V-hull boats and a soft polyurethane finish that’s gentle on fibreglass surfaces.

This roller has a width of 152mm and a 17mm bore, making it compatible with most standard 16mm spindles.
The Sydney-style contour helps cradle the keel, reducing sway and ensuring better alignment on the trailer.

Paired with a hot-dip galvanised bracket for maximum corrosion resistance, this kit is ready for use in harsh marine conditions.
Ideal for trailer owners looking for an upgrade in both performance and protection.

Specifications:

The BDA037 is your go-to choice for accurate keel alignment, smooth guidance, and soft hull protection—all in one.

Frequently Asked Questions

• What is a Sydney-style roller?
  It’s a concave or “hourglass”-shaped roller designed to cradle V-hull keels and guide them onto the trailer more easily.
• Can it handle fibreglass boats?
  Yes, the soft red poly is perfect for protecting fibreglass and gelcoat finishes.
• Is the bracket included?
  Absolutely—it comes with a hot-dip galvanised steel bracket ready to install.
• Does it need special spindles?
  No, it fits standard 16mm spindles with its 17mm bore.

Is This the Right Kit for You?

Recommended For:

• Fibreglass boat owners with V-hull designs
• Users wanting better centering support during launch
• 16mm spindle systems looking for soft roller options
• People replacing older rubber or flat rollers with shape-guided versions

Not Recommended For:

• Flat hull boats (may not align properly)
• Heavy-duty boats needing 8” or larger rollers

Installation Tips:

1. Position bracket on trailer keel arm and secure using U-bolts or bolts.
2. Slide the Sydney-style roller onto a 16mm shaft.
3. Add spacers or washers to ensure central alignment.
4. Ensure roller spins freely and is properly aligned with the keel path.