Viking 4½in Keel Roller – Black Rubber, 17mm Bore

Your keel roller's a size too small and the hull's sitting high on the trailer. You've probably tried shimming it and given up.

This Viking 4½in keel roller (part 91212) gives you that extra half-inch of cradle without changing your bracket setup. Same 17mm bore as the standard 4in, so it bolts straight in if your axle is already 17mm.

Soft black rubber, budget price point. It'll flex in winter and won't shatter on a cold morning at the boat ramp. The trade-off: it's soft enough to leave light marks on a freshly faired hull. For a working boat or one that's been out a few seasons, that's a fair call.

Direct swap if your current roller is 17mm bore. Add to cart

• 4½-inch keel roller — extra cradle over the standard 4in size
• 17mm bore for direct fit on most Australian boat-trailer axles
• Black soft-rubber compound: flexible, cold-tolerant, affordable
• Viking Rollers part 91212 (supplied via JAYCAR)
• May leave faint marks on gelcoat; best suited to working or aged hulls