Boat Trailer 6″ Red Poly Keel Roller with Galvanised Standard Bracket & Clamp Kit – 17mm Bore (SKU: BDA036)

The BDA036 delivers smooth, safe keel support for fibreglass boats, featuring a soft yet resilient red polyurethane roller paired with a hot-dip galvanised steel bracket and adjustable clamp-on stem mounts (75mm x 50mm).

This 6″ roller offers a wide 203mm support surface and is made from UV-stable, non-marking poly that’s ideal for painted or gel-coated hulls.
It has a 17mm bore, perfectly suited to 16mm spindles, making it an easy match for most Australian trailers.

The included standard bracket comes with clamp-on adjusters, allowing flexible height mounting without welding or drilling—perfect for upgrades, rebuilds, or new trailer setups.

Specifications:

Perfect for boaters who want safe hull handling with flexible mounting—BDA036 makes keel support easy and worry-free.

Frequently Asked Questions

• What type of boat is this for?
  Designed especially for fibreglass boats, but also usable on light alloy boats.
• Do I need to weld it on?
  Nope! The included clamp-on adjusters allow bolt-on installation—super flexible.
• Is red poly better than blue?
  Red poly is softer and ideal for more delicate hull finishes.
• Can I use this on a custom trailer?
  Yes, the bracket system is flexible enough to adapt to many setups.

Is This the Right Kit for You?

Recommended For:

• Fibreglass boat owners needing soft, protective keel rollers
• Installers who prefer bolt-on brackets (no welding)
• Trailers using 16mm shafts and needing flexible height adjustment
• People looking for a complete roller + bracket + adjuster setup

Not Recommended For:

• Heavy-duty trailers needing 8″+ wide rollers
• V-shaped keel trailers needing Vee or Sydney-style rollers

Installation Tips:

1. Align the standard bracket on your trailer’s keel rail.
2. Use the 75x50mm clamp-on adjusters to lock it in place—no welding required.
3. Slide the roller onto your 16mm spindle and fix using locking nuts or washers.
4. Test the roller spin before loading your boat.