It’s the best ‘sit and forget’ saddle I’ve owned so far – just the right size and firmness. My Phenom comes close, but is too hard at the rear edge. My Gobi is great, but not quite soft enough for long rides in winter.
Note, there are at least 3 rail options with Bel Airs: Cr-Mo, Ti-Alloy and Solid Ti.
My Bel Air is one of these:
http://www.chainreactioncycles.com/sdg-bel-air-rl-ti-alloy-collection-saddle/rp-prod134697
A lot of the gold on the rails and the logo on the top cover rubbed off on my first ride with it, so don’t expect it too look nice if you ride in gritty shit.
I also own an SDG Formula MTR, which is the comfiest of them all, but the top cover is a bit fragile. If it’s comfort you want, this ones the best in my opinion:
http://www.chainreactioncycles.com/sdg-formula-mtr-ti-saddle-2012/rp-prod51942