Good question, your local LBS will (generally) work with you on this. Here is an inexpensive start : http://store.trekbikes.com/product/i...FaZQOgodVBEAeg A little wide for me, but was comfortable. Now I'm riding an EVOKE-1 http://bontrager.com/features/evoke , it's like sitting on a brick wall. But not painful, just not comfortable. Probably going saddle shopping myself today.