Thanks Horror , that's another thing I need to find out what's a good all round weather tyre to fit to the M20's ? As you will have probably realised I'm new to the BSA M20 scene and its still a big learning curve I'm on , 2 strokes have been my thing in the past myself racing (20yr ago) and now both my lads do it .
Thanks Tim. I've just replaced my rear wheel and taken off and replaced the tyre back onto the new wheel , yes they do have soft walls very easy to change which was a pleasant surprise .