Aerodynamics vs stiffness concerns.... So, presumably one would want to make these choices depending on the type of racing, distance etc.
Dennis Young
Hotaka, Japan
>
> My Campagnolo #14 Catalogue (1960) shows ONLY 110 for the rear. If anyone has
> a catalogue #15 (1967) or #16 (1968), it would be interesting to see if both
> are listed.
> A narrower rear triangle (110 spacing) would be more aerodynamic, a wider
> rear triangle (120 spacing) would be (potentially) stiffer.
> Stevan Thomas
> Alameda, CA
>
>> The older rear track hubs were once primarily available in 110mm spacing,
>> then at some point they changed to 120mm for the most part. Current kierin
>> frames are available in both sizes, and track hubs are still produced to
>> accommodate both. 120mm seems to be most common these days. Can anyone
>> offer a opinion as to why some riders would prefer one size over another?