Hello all,

I don't see how Sid Bowditch was involved with the 45 at all!
Sid retired in 1958; the 45 was released in late 1967.

Sid's last projects were the 30" Queen and the ill-fated second
version of the Spincut, the 18" (with twin height levers!).

The closest progenitor to the 45 is the Bonmow 33, released in 1960,
also after Sid's retirement.

I don't think the frame issues on 45's can be attributed to a design defect.
The cracks are only showing up some 3 decades after manufacture, well after
the expected life cycle of a domestic lawnmower. In this light, the frame
is just plain worn out rather than suffering a premature fail.

It may be fair to say the single rail was a better design in not suffering,
or suffering less catastrophically, than the later twin rails in the way that
Grumpy described. I'd still have a twin rail machine any day - easier to clean
and inspect - particularly for cracks grin - and nicer to look at (in my view).

Cheers.
---------------------------
JACK