Art; I have a 3-arm GS crankset on my mid-70's Bertin. Is this crankset NOT safe?
john boise, id usa
Date: Fri, 7 Dec 2007 12:23:02 -0800 (PST) From: Art Link <artlink@columnssanantonio.com> To: classic rendezvous <classicrendezvous@bikelist.org> Subject: [CR]Three-arm crank spider question.
In days of yore many crank spiders were 3-armed(F.B.,Magistroni,Simplex.Campagnolo GS,Chater Lea,Bianchi Paris -Roubaix model,Canondale Coda,Schwinn Paramount and Superior) yet one sees almost exclusively 5 -arm Spiders today. Is this because the old steel ones were stronger than modern alloys and simply didn't break under stress or is it a modern "fashion" preference.I like the look of the 3-arm spider and they might actually save weight. Were any 3-arm alloy spiders known to break(i.e.Campy GS) ? Art Link,San Antonio,TX,USA