multimodal commuter
Join Date: Nov 2006
Location: NJ, NYC, LI
Posts: 19,808
Bikes: 1940s Fothergill, 1959 Allegro Special, 1963? Claud Butler Olympic Sprint, Lambert 'Clubman', 1974 Fuji "the Ace", 1976 Holdsworth 650b conversion rando bike, 1983 Trek 720 tourer, 1984 Counterpoint Opus II, 1993 Basso Gap, 2010 Downtube 8h, and...
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Something is wrong, beyond what we've already discussed. Perhaps your leather is stretched out?
If your tension bolt is
shorter than 65mm, perhaps it is broken?
The reason it's hard to put the tension bolt in, in most cases, is that it's too long.
I agree, the design has its shortcomings, even though this is the improved design. The old design (pre-1950, yes, really!) did not let the tension bolt rotate in the nose, but didn't support the nose as well.
At this point all I can think of is: try to hold the bolt with pliers while you turn the nut.