I have the WM mustang 46 and i have dubro rubber wheels fitted, all i did was shave a little bit off of the wheel hub where it sticks out a little bit to stop it sliding round the bend in the gear and then bought some slimmer wheel collets for 25 pence from my LHS because the ones that come with the plane are very wide and its a perfect fit that has held up so far for almost 2 years. its very simple.