Originally Posted by
Road Fan
That weight IS interesting! Steel cranks?
I suppose the 531 straight tubes could have been supplied in a wide range of thicknesses and hence weights. Someone wrote recently that it was usual to offer tube sets customized to the builder's needs.
The Reynolds transfer from the bike stated 531 straight gauge tubes, forks and stays.
I think that is the primary difference folk forget when comparing it to a Super Course.
Williams Cranks, 3 pin. Pretty darn nice too, the chainrings were machine finished, not stamped out.
Simple aluminum seat post, GB stem with the brake cable running through, plain aluminum bars. Brooks saddle.
32/40 spoke wheels.
Huret Allvit shifting.
Weinmann center pull brakes
High flange aluminum hubs.
The knocks against if might be cad plated spokes, no quick release, (but nice acorn nuts with attached clamping washers)
When I bought my first Road bike, it had tubulars, and of a similar size but only was 3/4 pound lighter.