Boat Trailer 12″ Red Poly Vee Keel Roller with Galvanised Standard Bracket – 21mm Bore (SKU: BDA109)

The BDA109 is built for those who prefer gentle strength — a soft red polyurethane 12″ Vee roller mounted on a reliable galvanised standard bracket. This roller is all about premium care for your boat’s keel, offering excellent centering and impact cushioning during trailer operations.

Perfect for fibreglass or painted hulls, the soft red poly construction minimises scratches while ensuring long-lasting resistance to UV, salt, and pressure. The bracket includes clamp-on stem adjusters for easy and stable installation on standard trailer setups.

Specifications:

A great choice for trailers that deserve an upgrade in both looks and function — and for boat owners who truly love their hull.

Frequently Asked Questions

• Is the bracket adjustable?
  Yes, it includes clamp-on adjusters for quick installation and alignment.
• Can this roller handle saltwater?
  Absolutely. The polyurethane is UV stable, and the bracket is galvanised for corrosion resistance.
• Does the red poly mark hulls?
  No, it’s non-marking and designed to be gentle on fibreglass finishes.
• Is this better than a rubber roller?
  If your goal is softness + durability, poly is a better long-term option for fibreglass boats.

Is This the Right Kit for You?

Recommended For:

• Trailer owners using 21mm bore / 20mm spindle setups
• Fibreglass boat users needing soft contact and precision centering
• Anyone upgrading from standard rubber rollers to a gentler, modern option

Not Recommended For:

• Boats with metal hulls where soft contact isn’t needed
• Custom setups that don’t support standard 75x50mm brackets

Installation Tips:

1. Attach the clamp-on bracket to your trailer’s cross rail using the stem adjusters.
2. Slide the roller over the spindle, ensuring centered alignment.
3. Secure each side with cotter pins or end caps.
4. Test by loading the boat slowly to ensure smooth guidance into the Vee shape.