Boat Trailer 4″ Black Rubber Keel Roller with Galvanised Spindle Bracket Kit – Non-Marking, Compact Design (SKU: BDA070)

Boat Trailer 4″ Black Rubber Keel Roller & Galvanised Bracket Spindle Kit (SKU: BDA070)

This compact 4-inch black rubber keel roller kit is designed for smaller boat trailers needing reliable bow or keel support.
With a 16.5mm bore size, it perfectly suits trailers using a 16mm spindle, and the included
galvanised bracket ensures a strong and rust-resistant mounting point.

The roller’s non-marking rubber protects your boat hull from scuffs, and its tough UV-stable construction makes it ready for
harsh Aussie weather and coastal conditions. Whether you’re trailering a tinnie, dinghy, or small fiberglass boat, this unit delivers dependable support.

Key Specifications:

Benefits:

• Compact size – ideal for small boats and light trailers
• Non-marking rubber keeps your hull looking clean
• Galvanised bracket resists rust and corrosion
• Easy to install – suits standard 16mm spindle setups
• UV stable material suitable for sun and salt exposure

Small but mighty – this 4” roller is built to keep your boat centered, safe, and looking great, from driveway to launch ramp.

FAQs

• Q: Will this roller mark my boat?
  A: No – it’s made of non-marking rubber to protect your boat’s finish.
• Q: Is the bracket included?
  A: Yes, this kit comes with the galvanised bracket and is ready to install.
• Q: Does it fit 16mm axles?
  A: Absolutely! The bore is 16.5mm, making it a perfect fit for 16mm spindles.
• Q: What type of boat is this best for?
  A: It’s ideal for small fiberglass boats, dinghies, and aluminium tinnies.

Evaluation & Recommendation

✔ Best For:

• Small boat trailers using 16mm spindles
• Fiberglass or aluminium tinnies
• Users looking for non-marking and UV-stable rollers
• Budget-conscious trailer owners needing a reliable, simple solution

✘ Not Ideal For:

• Large boats that require heavy-duty keel support
• Trailers with 19mm or thicker spindles
• Users expecting a full setup with bolts and nuts included (this is roller + bracket only)

🛠 Installation & Usage Tips:

• Apply marine grease inside bore for smoother spinning and longer lifespan
• Always rinse with freshwater after saltwater trips to prevent rusting on the bracket
• Make sure to match spindle size – this kit is best with 16mm shafts

💡 Our Honest Advice:

This is a “no-frills, gets-the-job-done” kind of roller – perfect for small setups. If you’ve got a dinghy or a tinnie, or just a lightweight trailer that doesn’t need a roller the size of a car tyre, this guy is your low-key legend.