14-06-2019, 07:53 AM
For those interested, the topic of the rotating end of tubular axle was covered at length some time ago. A photo of that part would make the arrangement clear. For those who grasp the workings of the "modern" torsion axle the basis is obvious.
But the virtues of the very complex arrangemnt for the front of the radius rod assembly to rotate cf a simple ball joint at the rear taxes the grey matter somewhat. Especially bearing in mind the way castor changes on the standard Sevens when the radius rod is rotated.
An inportant point is that none of the complex pieces drops onto the road or into the spokes. When I fitted Girling brakes to my Seven with the early radius rods the increased stresses on them were so obvious I fitted a safety wire in case the spigot broke off.
But the virtues of the very complex arrangemnt for the front of the radius rod assembly to rotate cf a simple ball joint at the rear taxes the grey matter somewhat. Especially bearing in mind the way castor changes on the standard Sevens when the radius rod is rotated.
An inportant point is that none of the complex pieces drops onto the road or into the spokes. When I fitted Girling brakes to my Seven with the early radius rods the increased stresses on them were so obvious I fitted a safety wire in case the spigot broke off.