Originally posted by D*Alex
The problem with old Raleighs, though, is that many of them use whitworth threads. This is an ancient machine dimensioning standard, one which the rest of the world (England included) abandoned 50 years ago. If your BB threads are whitworth, then you will probably find that your choices are quite limited, if even available.
Although this is indeed a problem with roadsters and very early road bikes, any Raleigh road frame made since the early-to-mid 1950s will have modern ISO BB threading. These sweet-riding old frames are superb candidates for component upgrades.
__________________
"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069