I am 57 and use a 50/34. I have have a 53/39 but really no reason. I am a fairly strong rider but I would not be using the 53/11 unless going downhill for awhile, much better working a long steep grade knowing I have a 34/28. Frankly a 34/30 if I lived in the mountains. The 50/11 is plenty no reason to have a standard double anymore.