At 10:59 PM 19/10/2008 -0400, marcus.e.helman@gm.com wrote:
>Why did framebuilders start running cables under the bottom bracket? It
>seems to offer no advantage. I have one bike with the cables run on top
>of the BB, and one with the cables running underneath. There is no
>difference in shifting that I can tell. Maybe it's just esthetics.
>Personally, I prefer the more traditional top of BB treatment.
I agree. With top of BB guides, the cables run parallel to the downtube and the RD cable housing forms a clean loop instead of having to come up from under the chainstay. In my view, running the cables under the BB was just to save cost.
John Betmanis
Woodstock, Ontario
Canada