Boat Trailer 8″ Red Poly Self-Centering Roller for Fibreglass Hulls (SKU: SCRP200X21)

This 8″ Red Polyurethane Self-Centering Roller (SKU: SCRP200X21) is specially designed for fibreglass boats. Made with marine-grade soft red polyurethane, it protects your hull while guiding the boat effortlessly onto the trailer. The self-centering design ensures the boat aligns correctly every time, reducing hassle at the ramp and preventing damage to your gel coat.

Ideal for V-hull or keel-style fibreglass boats, this roller is a must-have for smooth loading and safe transport. With a 21mm bore, it fits most common shaft setups. Built tough to withstand saltwater conditions and resist cracking or flattening over time.

Perfect for DIY trailer upgrades or replacements, this roller combines flexibility and durability. Whether you’re upgrading from a black rubber roller or building a trailer from scratch, this is the pro’s choice for fibreglass boat protection.

FAQ

• Q: Will this roller fit my trailer?
  A: This roller has a 21mm bore and fits standard trailer brackets with 21mm shafts. Double-check your shaft size before ordering.
• Q: Is this roller suitable for aluminium hulls?
  A: It’s designed specifically for fibreglass hulls. Aluminium boats are better off with firmer rollers.
• Q: How soft is the red poly?
  A: It’s a medium-soft polyurethane, designed to protect delicate gel coats while still providing enough strength for centering.
• Q: Does it come with a shaft or bracket?
  A: No, this listing is for the roller only. Shafts and brackets are sold separately.

Evaluation & Recommendation

This roller is best suited for:

• Fibreglass boat owners who need hull protection during loading.
• Users looking to upgrade from standard black rubber rollers.
• Trailer builders or repairers needing a soft-contact centering solution.

Not recommended for:

• Aluminium or tinny boats – firmer rollers are better for those hulls.
• Heavy boats above 1500kg – may require additional support rollers.

Installation Tips:

1. Remove the old roller by sliding it off the shaft.
2. Clean the shaft and check for rust or damage.
3. Slide the new roller onto the 21mm shaft and secure with suitable hardware.
4. Spin to test smooth movement and alignment before towing.