The Flying Scot
Join Date: Aug 2001
Location: North Queensferry Scotland and London (and France)
Bikes: Custom (Colin Laing) 531c fast tourer/audax, 1964 Flying Scot Continental, 1995 Cinelli Supercorsa, Holdsworth Mistral single speed, Dahon Speed 6 (folder), Micmo Sirocco and a few more
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I see what you mean, but my Shimano Un 52 BB has a fixed cup on one side but no lockring on the other, rather another threaded cup with a flange. It has (I think) roller bearings and in 3 and a half years of heavy use hasn't given any trouble. No lockring.
As it is a sealed unit, no need to adjust preload (I think) but I remember I had to give the width of the BB shell when buying it. Previously I have had Campag, TA and Mavic BB's, all adjustable.
My Flying Scot has an adjustable BB (Campag) and the shell has a grease nipple!
plus je vois les hommes, plus j'admire les chiens
1985 Sandy Gilchrist-Colin Laing built 531c Audax/fast tourer.
1964 Flying Scot Continental (531)
1995 Cinelli Supercorsa (Columbus SLX)
1980s Holdsworth Mistral fixed (531)
2005 Dahon Speed 6 (folder)
(YES I LIKE STEEL)
2008 Viking Saratoga tandem
2008 Micmo Sirocco Hybrid (aluminium!)
2012 BTwin Rockrider 8.1
Last edited by chewa; 09-21-01 at 06:18 AM.