6in Self-Centring Roller – Black Rubber, 17mm Bore (Viking 91250)

You need a roller that stays centred on the shaft without fiddling with washers or set screws. This 6-inch black self-centring rubber roller does exactly that – drop it on, spin freely, stay put. It's the budget-friendly option when you don't need the hardness of nylon. One thing to know: it's soft rubber, so it can leave marks on painted or gel-coated surfaces. If your hull is aluminium or you're fine with a bit of contact marking, this saves you money and hassle

• Self-centring design – stays aligned on the shaft without extra hardware
• 6-inch black rubber surface – budget-friendly option for trailer setups
• 17mm bore for standard trailer shaft fitment
• Note: soft rubber may leave marks on painted or gel-coated hulls
• Viking Rollers part 91250