Your boat trailer rollers are worn flat and every launch is a fight. You need the exact bore size to drop straight onto your axle pin without shims or adapters. This 19mm-bore wobble roller does that. It's the budget rubber option from Viking — gets your hull rolling smoothly at a sensible price. One honest caveat: soft rubber can leave marks on a painted or gelcoat hull over time. If you've got a fibreglass boat you're after, the red polyurethane version is the safer call. Grab the 19mm if that's what your axle calls for
| brand | Jaycar |
| manufacturer_part_number | Viking Rollers 91100 |
| roller_size | 3in x 4in |
| bore_diameter | 19mm |
| colour | Grey |
| material | Rubber |
| type | Wobble Roller |
| application | Boat trailer axle |