PSO Hidden sliding gate wheels PSO Hidden sliding gate wheels for gates from 240-430Kg per wheel £16.00 Designed to be 3/4 hidden inside of gate chassis keeping the gap beneath the gate to a minimum. Available options: 1027PSO: 100mm dia wheel, single bearing, max 240Kg per wheel. 926PSO: 90mm dia wheel, twin bearings, max 300Kg per wheel. 1026PSO: 100mm dia wheel, twin bearings, max 340Kg per wheel. 1227PSO: 120mm dia wheel, twin bearings, max 430Kg per wheel.