Thread: Should I remove fixed cup?
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Old 03-11-21 | 03:11 PM
  #46  
Johno59
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Joined: Oct 2016
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From: Cambridge UK

Bikes: 1903 24 spd Sunbeam, 1927 Humber, 3 1930 Raleighs, 2 1940s Sunbeams, 2 1940s Raleighs, Rudge, 1950s Robin Hood, 1958 Claud Butler, 2 1973 Colnago Supers, Eddie Merckx, 2 1980 Holdsworth, EG Bates funny TT bike, another 6 or so 1990s bikes

Originally Posted by 3alarmer
...I always assumed it had something to do with giving maximal access to the cotters, for removal and reinstallation. It's my own assumption, and might be wrong. Might have just been ease of manufacturing, given the machinery available, and the limitations of it.
Sure ...the cotter pin arrangement necessitated a good chunk of steel width in the crank to give strength. However I don't believe complexity provides an explanation. I have a 1903 Sunbeam that has a 2 speed epi-cylic BB with 150 1/8" ball-bearings - still going strong.
I mean to say ......what kind of maniac would attempt to manufacture something like that.
Last edited by Johno59; 03-11-21 at 03:15 PM.
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