Joined: Jan 2010
Posts: 9,779
Likes: 1,748
From: Northern California
Bikes: Cheltenham-Pedersen racer, Boulder F/S Paris-Roubaix, Varsity racer, '52 Christophe, '62 Continental, '92 Merckx, '75 Limongi, '76 Presto, '72 Gitane SC, '71 Schwinn SS, etc.
I think that this was a great idea to allow one to choose between one or two bottle cages for different-length rides in perhaps different weather.
It saves weight and air resistance, also spares the extra cage from possible damage and/or of it snagging on something.