On 2/26/2018 6:15 PM, Emanuel Berg wrote:
Here is a good image of the/a
one piece crank [1].
I have a couple of such from Japan and Taiwan
and they seem to be 100% interchangeable down to
the last washer.
What I can see they are also identical to the
one depicted, only sometimes there is a big
washer/spacer between the chainring/sprocket
and the stationary cone, and they have a large
dustshield between the adjusting cone and
the lockwasher.
The locknut is sometimes 31mm which is a rare
combination spanner size. More often they are
32mm tho.
[1] http://user.it.uu.se/~embe8573/bike/1p-crank.jpg
Crank shown is different, being 28tpi. The others are 24tpi.
--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971