The Avocet triple on my '77 PX10: 50-47-26.



Freewheel : 13-15-17-20-23-26



I made this little chart to tape on my bars:

... 50 47 26
13 04 98 54
15 90 85 47
17 79 75 41
20 68 63 35
23 59 55 31
26 52 49 27