Re:
Velobase indicate that the maximum cog for an SR is 28t . I run two 2nd generation SR's -- Sachs Maillard 6sp 13/28 and Triomphe 50/37, and Shimano Uniglide 5sp 14/28 and Stronglight 99 46/34. The top pulley just goes in without bumping , a longer toothed freewheel would be a problem. I...