Hi Max,
Any thoughts on what material I should use on the disc, kevlar, nitrile,cork? At the moment the Ariens wheel idea is on hold because they are 150 in diameter which is 25mm in diameter bigger that the existing wheel and that will give me issues when I have to depress the shifter down to change gears because it will hit the rear axle. As a last resort I could lower the axle down say 15mm and that would give me clearance but it is a lot of work getting the wheels off and the axel out.