Wheel size offset 22.5 x 11.75 22.5 x 11.75 22.5 x 11.75 0 120 135 weight (kg) new vs old 21.0 22.1 22.6 23.6 23.4 26.4 max. load (kg) new vs old 4750 4500 same 4500 same 4500 disc thickness (mm) new vs old 21.0 22.0 24.7 26.0 24.1 27.5 22.5 x 8.25 147 22.1 22.7 same 3650 20.5 22.0 22.5 x 9.00 155 22.7 23.2 same 4125 20.5 22.0 The new 8.25 and 9.00 wheels will also have a new straight valve: 54 MS 00, replacing 70 MS 07N2. WorkHorse® wheel 22.5 x 11.75 120 24.2 25.6 same 5000 A revised Alcoa Specification Sheet will be available shortly. 25.3 26.0