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Some other different practices - rather than just relying on a bolt to attach the rear brake torque arm to the swinging arm the bracket welded to the underside of the SA has an 8mm ID tube welded to it cut the same thickness of the torque arm. There are a number of instances of this practice all over the bike.
The anti-vibration mountings all over the bike are 2 penny washers sandwiching a 2mm rubber washer, typically these are between the bracket on the frame and the component to be attached, e.g. rear mudguard. The attaching bolt is still in contact with both the frame and the mudguard so probably not effective at all. I think I shall probably modify most of these so that a rubber grommet is inserted into a bigger hole in the component to be attached and the bolt is isolated from both the frame and the component by a layer of rubber
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