DUNBIER Boat Trailer Golden Soft Poly Cotton Keel Roller 4.5” 120x17mm (SKU: 2923)

Meet the compact champion: the DUNBIER 4.5″ Golden Cotton Keel Roller – SKU: 2923. Tailored for precision support on lighter boats and smaller trailers, this short king of the keel world combines elegance and practicality in one golden package.

Crafted from premium soft polyurethane, the roller is ideal for fibreglass and alloy boats. Its cotton-style rounded edge makes it a perfect fit for smooth gliding and minimal hull contact, while the non-marking surface ensures your boat stays looking sharp.

The 17mm bore comfortably fits 16mm spindles, and its 120mm length offers a snug fit in tight setups where larger rollers just won’t cut it. This is the golden roller that proves size isn’t everything — quality and function matter more.

From ramp to water, this roller rolls like royalty — smooth, stylish, and silent.

Frequently Asked Questions

• What’s a “cotton” roller?
  It’s a soft-profile roller with rounded ends, great for gentle hull contact and alignment.
• Is this roller suitable for fibreglass?
  Yes! It’s non-marking and specifically designed to be gentle on delicate surfaces.
• Will it fit a 16mm spindle?
  Perfectly. The 17mm bore is made for 16mm spindle systems.
• Does it come with a bracket?
  No, this listing is for the roller only.

Should You Buy This?

Recommended For:

• Owners of small or mid-sized trailers needing soft hull protection
• Boats with fibreglass or painted alloy keels
• Customers upgrading from old rubber rollers

Not Recommended For:

• Very heavy boats that need high-load or wide rollers
• Custom setups requiring unusual spindle sizes

Quick Installation Guide:

1. Slide roller onto your 16mm spindle.
2. Ensure even placement and use washers or locking clips to hold it.
3. Check alignment with trailer keel bracket and test with slow boat roll-on.