Originally Posted by
jimn
But I'm surprised nobody's mentioned the two things I would have thought it was:
* the chainring isn't ramped
* the Cyclone cranks have the wrong spacing between the chainrings
I haven't mentioned them because I've used older cranks without ramped/pinned chainrings with STI (Sora) and had no problems getting it to shift ok. With that said, upshifting does require a slight delay of the shift lever motion for the shift to complete. Whereas with ramped and pinned rings you can just quickly push the lever to shift then let go and the shift will complete, without the ramps and pins you need to hold the shift lever in for a half second then let go. Does this make sense?
For some reason, I blanked out on this until it occurred to me this morning.