Overview
Upgrade your fibreglass trailering with our 8″ (≈203 mm) Red Poly Concave Go-Keel Roller (Part No. 91521S). Precision‑machined soft red polyurethane cradles the boat hull, ensuring smooth centering and minimal abrasion. Designed to handle standard 17 mm spindles for seamless mounting.
Key Features
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203 mm width – provides ample hull support on wide keel areas
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17 mm central bore – standard fit for trailer spindles
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Concave profile – guides hull toward centre for easy alignment
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Softer red polyurethane – non-marking, UV-resistant, ideal for fibreglass
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Marine-grade durability – built for harsh saltwater and UV exposure in Australia
Applications
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Main or intermediary keel roller for fibreglass boat trailers
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Works with standard flat bracket or stem assemblies, 17 mm spindles
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Suitable for boaters seeking self-aligning support during launch / retrieval
Specifications
| Feature | Details |
|---|---|
| Roller Width | 8″ (~203 mm) |
| Bore Size | 17 mm |
| Material | UV-stable red polyurethane |
| Profile | Concave / V‑shaped for self-centering |
| Part Number | 91521S |
Benefits
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Soft yet strong material reduces gelcoat abrasion
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Concave design helps centre the hull automatically
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Quick dispatch from QLD
Shipping is calculated at checkout based on your location.