Cranks that use external bb's tend to be two pieces, which means on one join to knacker, whereas square taper can round off in two places.
(I've knackered a total of about eight square taper cranks in about three years if polo, my deores were second hand and are still going after about a year... Probably not a problem for you though)
Cranks that use external bb's tend to be two pieces, which means on one join to knacker, whereas square taper can round off in two places.
(I've knackered a total of about eight square taper cranks in about three years if polo, my deores were second hand and are still going after about a year... Probably not a problem for you though)